Citizen bn4026 Instruction Manual
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Citizen bn4026 Instruction Manual

Analog solar powered watch
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INSTRUCTION MANUAL

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  • Page 1 INSTRUCTION MANUAL...
  • Page 2 ENGLISH FRANÇAIS ESPAÑOL DEUTSCH ITALIANO PORTUGUÊS...
  • Page 3 Before using the watch, read this instruction manual carefully to ensure correct use. After reading the manual, store it in a safe place for future reference. Be sure to visit the Citizen website at http://www.citizenwatch-global.com/ . Here you will find a variety of information such as electronic setting guides, answers to frequently asked questions, Eco-Drive recharging information and more.
  • Page 4 Safety precautions — IMPORTANT This manual contains instructions that should be strictly followed at all times not only for optimal use, but to prevent any injuries to yourself, other persons or property. We encourage you to read the entire booklet (especially, pages 3, 4, and 58 to 71) and understand the meaning of the following symbols: ■...

  • Page 5: Before Using This Watch

    Before using this watch About altitude measurement This watch does not function as a specialized altitude-measuring equipment certified by any authority or regulating standards. Use the indicated altitude only as a reference. Do not use the altitude measurement function of this watch in the following cases: • When actions or situation judgments involving risks are required.
  • Page 6 Before using this watch About the compass This watch does not function as a specialized compass instrument certified by any authority or regulating standards. Use the indicated compass direction only as a reference. Do not use the compass function of this watch in the following cases: WARNING • When precise directional indication is required for navigational or other activities with serious risks.
  • Page 7 Before using this watch After unpacking, the following must be done before using the watch: • Checking the power reserve see page For optimal performance, ensure your watch is fully charged prior to use. Refer to pages 12 to 15 for charging procedures and times. This watch has a rechargeable cell which is charged by exposing the dial to light.
  • Page 8 If adjustment is not done correctly, the bracelet may unexpectedly become detached leading to loss of your watch or injury. Consult your nearest authorized Citizen service center. Protective stickers Be sure to remove any protective stickers that may be on your watch (case back, band, clasp, etc.).

  • Page 9: Recessed Buttons

    Before using this watch Screw down crown/button Unlock the crown/button prior to operate your watch. Unlock Lock Push the crown in to the case. With gentle pressure Rotate the crown towards the case, rotate the Screw down counterclockwise until it crown clockwise to secure crown releases from the case.
  • Page 10 Charging your watch ... by measuring geomagnetism with the built-in magnetism Checking the current power sensor reserve....... Eco-Drive (solar powered) Measuring altitude ....Never needs a new battery. This watch is fueled by light. Using the compass ....• “Eco-Drive” is an original technology of Citizen.

  • Page 11: Table Of Contents

    Setting the time ....Troubleshooting ....Eco-Drive (solar powered) watch Adjusting the calendar ..handling precautions ..Calibrating altitude indication ..... Water resistance ....Calibrating Precautionary items and compass indication .... usage limitations ....Checking and correcting the Information......reference position ....Specifications ...... Using the scale ....
  • Page 12 Parts identification (when measuring altitude) 100 m hand Scale Scale rotation Upper left button ( crown Hour hand 6 7 8 9 Minute hand x 1000 m Atmospheric pressure sensor Date indicator 1 000 m hand Crown Lower left button ( 2.5 m hand Second hand • Some models are not equipped with the scale and the scale rotation crown.
  • Page 13 Parts identification (when using the compass) Compass Scale hand Scale rotation Upper left button ( crown Hour hand 6 7 8 9 Minute hand x 1000 m Date indicator Power reserve indication hand Crown Lower left button ( A solar cell is placed Second hand under the dial.
  • Page 14 Charging your watch This watch has a rechargeable cell which is charged by exposing the dial to light, such as direct sunlight or fluorescent lamps (refer to pages for charging guidelines). After taking off the watch, put it in a location where the dial is exposed to bright light, such as by a window.
  • Page 15 Charging your watch When the watch reaches a low charge state (insufficient charge warning function) When the power reserve becomes low, the second hand moves once every two seconds. This is the insufficient charge warning function. Be sure to fully charge your watch as outlined on pages • When the watch is sufficiently charged, the second hand will move normally.
  • Page 16 Charging your watch Charging time by environment Below are the approximate times required for charging when exposing the watch dial to light continuously. Please use this table as a reference only. Charging time (approx.) Illuminance To start working To become fully Environment To work for one (lx) normally when the charged when the cell cell is discharged is discharged...
  • Page 17 Charging your watch • To charge your watch, it is recommended to expose the dial to direct sunlight. Optimal charging is achieved by exposing the dial to direct sunlight outdoors for a short time each day. • After charged fully, the watch runs without additional charging for about 11 months.
  • Page 18 Checking the current power reserve Power reserve indication (Power reserve indication hand on the left sub dial) 6 7 8 9 x 1000 m Power reserve level scale Power reserve indication hand • Power reserve is not indicated during altitude measurement (page 18) or altitude calibration (page 28).
  • Page 19 Checking the current power reserve The power reserve level Level Level indication Approximate 280 - 340 days 180 - 280 days 4 - 180 days 4 days or less duration Power reserve Power reserve is Power reserve is Power reserve is is sufficient for sufficient for all getting low.
  • Page 20 Measuring altitude • Use the measuring result only as a reference. • Use a commercial specialized device when highly accurate measurement is required. • Confirm the power reserve is in level “2” or higher before measurement. Press and release the lower left button Altitude is indicated.
  • Page 21 Measuring altitude About altitude measurement This watch continuously measures altitude during the first 5 minutes of measurement. After that, measurement occurs every 3 minutes for up to 12 hours. How to read altitude indication Altitude is indicated by the 3 hands, the 1 000 m, 100 m and 2.5 m hands. 1 000 m hand indication Indication range: 1 000 m to 10 000 m The hand points “0”...
  • Page 22 Measuring altitude How to read altitude indication (continued) 100 m hand indication Indication range: ‒300 m to 900 m The hand points “0” when measured altitude is 0 m or higher and lower than 100 m. On the example in the left, the measured 6 7 8 9 6 7 8 9 altitude is indicated as 100 m level.
  • Page 23 Measuring altitude 2.5 m hand indication Indication range: ‒97.5 m to 97.5 m The 100 m hand points minus indication when measured altitude is lower than 0 m. In this case, use figures in parentheses to read the 2.5 m hand. On the example in the right, the last 2 digits of measured altitude are indicated as “40 m”...
  • Page 24 Measuring altitude How to read altitude indication (continued) Indication examples 6 7 8 9 6 7 8 9 x 1000 m x 1000 m Measured altitude: 6 790.0 m Measured altitude: -12.5 m...
  • Page 25 Measuring altitude When the measured altitude is out of the indication range Indication range: ‒300 m to 10 000 m When the measured altitude cannot be indicated, the 1 000 m hand points to “ ” (3 o’ c lock position) and stops. 6 7 8 9 x 1000 m 6 7 8 9...
  • Page 26 Using the compass • Use the compass direction result only as a reference. • Use a commercial specialized device when highly accurate measurement is required. • Confirm the power reserve is in level “2” or higher before measurement. Press and release the upper left button while keeping the watch’s dial level.
  • Page 27 Using the compass After finishing measurement, press and release the upper left button to turn off the function. • Compass indication ends in 30 seconds without pressing the button. How to read the compass indication The compass hand points north. North Compass direction result may become Compass hand significantly inaccurate near things which...

  • Page 28: Setting The Time

    Setting the time Pull the crown out to position as the second hand points 0 second. Rotate the crown to set the time. • Take care the time set is AM or PM. • Date indicator starts to change to the next as the setting passes 10PM. Rotating the crown counterclockwise does not turn back date indicator. Push the crown in to position in accordance with a reliable time source to finish the procedure.

  • Page 29: Adjusting The Calendar

    Adjusting the calendar You must correct the date on the first day of March, May, July, October and December. • Do not set the date during the period below as the date indicator is changing. Otherwise the date indicator may change improperly. Period of time: From 10PM to 0AM (12:00AM) Pull the crown out to position . Rotate the crown clockwise to set the date. Push the crown in to position to finish the procedure.

  • Page 30: Calibrating Altitude Indication

    Calibrating altitude indication About altitude indication This watch measures atmospheric pressure with a specialized sensor and calculates altitude by applying the standard atmosphere model (set by ICAO, International Civil Aviation Organization) used for altitude measurement of civil aircrafts. The standard atmosphere model sets a theoretical atmosphere and how pressure, temperature, density and viscosity vary accompanying with change of altitude in it.
  • Page 31 Calibrating altitude indication Calibrating altitude indication You can correct altitude measured by the watch when you know the actual height from map, sign or other sources for future measurement. Press and release the lower left button The measured altitude is indicated. • It may take a moment to indicate altitude. Wait until movement of the hands stop.
  • Page 32 Calibrating altitude indication Press and release the lower left button choose + or –. Choose this when the actual altitude is higher than the measured one. Choose this when the actual altitude is lower than the measured one. • Each time you press and release the button, choice of “+”...
  • Page 33 Calibrating altitude indication Press and release the upper left button to correct the indication to the actual altitude. Move the 100 m and 2.5 m hands to indicate an approximate value of the altitude. • Indication keeps changing while you are pressing and holding the button. • Press and release the upper left button and lower left button at the same...

  • Page 34: Calibrating Compass Indication

    Calibrating compass indication About compass indication This watch measures earth magnetism directly with the built-in magnetic sensor for compass indication. Earth magnetism measurement is apt to be easily affected by environmental conditions near a magnet or thing emitting strong electromagnetic waves. In addition, generally, the north which a compass points to (magnetic north) is different from that on a map (true north).
  • Page 35 Calibrating compass indication About 2 point correction 2 point correction adjust the watch’s status according to the surrounding environment. Use it when temperature drastically changed or the watch itself may be magnetized. 2 point correction is more effective if you do it before using the compass. Second point of correction First point of (Turn the watch by 180º)
  • Page 36 Calibrating compass indication Executing 2 point correction When executing 2 point correction, you must turn the watch just 180º while keeping it level. Take enough care of surrounding conditions before starting correction. Confirm you are not near an item with strong magnetism (electric equipment, magnets, etc.) before starting correction.
  • Page 37 Calibrating compass indication Press and hold the upper left button for 3 seconds or more. The compass hand points the 3 o’ c lock position. 6 7 8 9 x 1000 m Press and release the lower left button The first surrounding environment data is stored and the compass hand turns 180º to point the 9 o’...
  • Page 38 Calibrating compass indication Turn the watch by 180º.
  • Page 39 Calibrating compass indication Press and release the lower left button The second surrounding environment data is stored and the compass hand points the 12 o’ c lock position. 2 point correction completes and compass function starts. • If the compass hand returns to the 3 o’ c lock position, try again from step 3. • Press and hold the upper left button for 3 seconds or more to cancel the correction.
  • Page 40 Calibrating compass indication About declination correction Due to physical characteristics of the Earth as an astronomical body, the magnetic north and true north as indicated on a map are different. The difference is called “declination”. Declination varies by location. North on a map North pointed by a compass (true north) (magnetic north)
  • Page 41 Calibrating compass indication Declination correction is a correction method to adjust the compass of the watch to indicate true north as indicated on a map by setting the declination value of the location where you wants to find compass direction on the watch previously. On this watch, declination of 0°...
  • Page 42 Calibrating compass indication Executing declination correction Press and release the upper left button Compass function starts. • It may take a moment to indicate compass direction. Wait until movement of the hands stop. Press and hold the upper left button for 3 seconds or more.
  • Page 43 Calibrating compass indication Press and release the lower left button to choose east or west. Choose this when the Choose this when the direction of declination is west direction of declination is east (W). (E). • Each time you press the button, choice of “E” and “W” changes alternately. Press and release the upper left button to set the degree of declination.
  • Page 44 Calibrating compass indication Press and hold the lower left button for 3 seconds or more. Declination correction completes and compass function starts. • It may take a moment to indicate compass direction. Wait until movement of the hands stop. Press and release the upper left button finish the procedure.
  • Page 45 Calibrating compass indication About declination correction and 2 point correction 2 point correction is a method to detect earth magnetism surely and declination correction is a method to correct the declination of earth magnetism itself. Appropriate implementation of the both methods makes the compass function of the watch more accurate.

  • Page 46: Checking And Correcting The Reference Position

    Checking and correcting the reference position Check whether the reference position is correct if altitude or compass indication is incorrect even after calibration. Correct reference positions What is the reference position? The base position of hands to indicate altitude and compass direction. • Position of the 1 000 m hand: 6:00 • Position of the 100 m hand (compass 6 7 8 9...
  • Page 47 Checking and correcting the reference position Checking the reference position Check whether the reference positions of the 1 000 m hand, 100 m hand (compass hand) and 2.5 m hand are correct. Stop altitude measurement or compass function and check the power reserve indication. • Charge the watch if the power reserve is lower than “2”.
  • Page 48 Checking and correcting the reference position Correcting the reference position Correct the hands and indication to make them show their correct reference positions. • Adjust the time after finishing correction of the reference position. Stop altitude measurement or compass function and check the power reserve indication. • Charge the watch if the power reserve is lower than “2”.
  • Page 49 Checking and correcting the reference position Press and release the upper left button Each time you press the button, the hand moves by 1 step. • The hand moves continuously while you are pressing and holding the button. Press and release the lower left button to change the hand to be corrected.

  • Page 50: Using The Scale

    Using the scale • Adjust the time after finishing correction of the reference position. Measuring altitude difference You can see altitude difference by setting the mark on the scale to the current position of the 2.5 m hand. To move the scale, turn the scale rotation crown. Scale rotation crown The scale shows altitude difference of –97.5 m to 97.5...
  • Page 51 Using the scale Seeing the bearings You can see the other bearings than the north by setting the mark on the scale to the current position of the compass hand. To move the scale, turn the scale rotation crown. Scale rotation crown North (N) mark on the scale • Set the...

  • Page 52: Troubleshooting

    Try again in a place with normal magnetism. If you cannot solve your problem 6 7 8 9 with the remedy, consult the nearest x 1000 m authorized Citizen service center. • Press either button to return to time indication.

  • Page 53: Troubleshooting

    A malfunction of the measurement Two hands point to “ ” and stay still. system has occurred. Consult the nearest authorized Citizen service center. • Press either button to return to time indication. 6 7 8 9 − x 1000 m...
  • Page 54 Troubleshooting Symptom Remedies Page Cannot perform 2 point correction 2 point correction of the compass A hand points to “ ” and stays still. hand has not finished properly. Execute 2 point correction from the beginning again. • Press either button to return to 6 7 8 9 time indication.
  • Page 55 Troubleshooting Symptom Remedies Page Movement of a hand seems strange Hands move in unexpected Stop altitude measurement or compass 18, 24 directions. function. Check and correct the reference position. Altitude indication is incorrect. Execute altitude calibration. Check and correct the reference position. Compass indication is incorrect.
  • Page 56 Troubleshooting Symptom Remedies Page Movement of a hand seems strange (continued) The second hand moves Charge the watch. once every two seconds. − Push the crown in to position The second hand does not It is required to charge in direct sunlight for move.
  • Page 57 Troubleshooting Symptom Remedies Page Calendar is incorrect Date indicator is incorrect. Adjust the calendar.
  • Page 58 Troubleshooting You can reset the watch to the initial status (All Reset). When you reset the watch, the following values return to the initial. • Calibration value of altitude measurement • Correction value of 2 point correction • Correction value of declination correction Be sure to perform the following operations after All Reset.
  • Page 59 Troubleshooting Stop altitude measurement or compass function and check the power reserve indication. • Charge the watch if the power reserve is lower than “2”. Pull the crown out to position . The 1 000 m hand, 100 m hand (compass hand) and 2.5 m hand move to their current reference positions.

  • Page 60: Eco-Drive (Solar Powered) Watch Handling Precautions

    Eco-Drive (solar powered) watch handling precautions <Always Make Sure to Recharge Frequently> • For optimal performance, your watch should remain fully charged. • Long sleeves may inhibit light transmission to your watch. This may result in your watch loosing charge. In these cases supplemental charging may be necessary. • When you take off the watch, place it in a bright location to ensure optimal performance.
  • Page 61 Eco-Drive (solar-powered) watch handling precautions CAUTION Recharging Precautions • Do not charge the watch at a high temperature (about 140 °F (60 °C) or higher) as doing so may cause the movement to malfunction. Examples: • Charging the watch too close to a light source which generates a large amount of heat such as an incandescent lamp or halogen lamp. * When charging under an incandescent lamp, be sure to leave 20 inches (50 cm) or more between the lamp and the watch to avoid exposing the watch to excessive heat.
  • Page 62 Eco-Drive (solar-powered) watch handling precautions <Replacement of Rechargeable Cell> • This watch utilizes a special rechargeable cell that does not require periodical replacement. However power consumption may increase after using the watch for a number of years due to wear of internal components and deterioration of oils. This may cause stored power to be depleted at a faster rate.
  • Page 63 Eco-Drive (solar-powered) watch handling precautions WARNING Use Only the Specified Battery • Never use a battery other than the rechargeable cell specified for use in this watch. Although the watch structure is designed so that it will not operate when another type of battery is installed, if a conventional watch battery or other type of battery is installed in the watch and the watch is recharged, there is the risk of overcharging which may cause the battery to rupture.

  • Page 64: Water Resistance

    Water resistance WARNING Water Resistance • Refer to the watch dial and/or the case back for the indication of the water resistance of your watch. The following chart provides examples of use for reference to ensure that your watch is used properly. (The unit “1 bar” is roughly equal to 1 atmosphere.) • WATER RESIST(ANT) ×× bar may also be indicated as W. R. ×× bar. Indication Name Specification Dial or Case back Non-water resistant —...
  • Page 65 Water resistance Water-related use Minor exposure Swimming and Operate the crown to water (washing general washing Skin diving, Scuba diving or button when face, rain, etc.) work marine sports using an air tank the watch is wet...
  • Page 66 Water resistance • Non-water resistant models are not designed to come into contact with any moisture. Take care not to expose a watch with this rating to any type of moisture. • Water resistance for daily use (to 3 atmospheres) means the watch is water resistant for occasional accidental splashing. • Upgraded water-resistance for daily use (to 5 atmospheres) means that the watch may be worn while swimming, but is not to worn while skin diving. • Upgraded water-resistance for daily use (to 10/20 atmospheres) means that the watch may be worn while skin diving, but not while scuba or saturated diving using helium gas.

  • Page 67: Precautionary Items And Usage Limitations

    Precautionary items and usage limitations CAUTION To Avoid Injury • Be particularly careful when wearing your watch while holding a small child, to avoid injury. • Be particularly careful when engaged in strenuous exercise or work, to avoid injury to yourself and others. • Do not wear your watch while in a sauna or other location where your watch may become excessively hot, since there is the risk of burns. • Be careful when putting on and taking off your watch, since there is a risk of damaging your fingernails, depending on the manner in which the band is fastened. • Take off your watch before going to bed.

  • Page 68: Precautionary Items And Usage Limitations

    Precautionary items and usage limitations CAUTION Precautions • Always use the watch with the crown pushed in (normal position). If the crown is of the screw lock-type, make sure it is securely locked. • Do not operate the crown or any push buttons when the watch is wet. Water may enter the watch causing damage to vital components. • If water enters the watch or the watch fogs up and does not clear up even after a long time, consult your dealer or customer support center for inspection and/or repair. • Even if your watch has a high level of water resistance, please be careful of the following. • If your watch is immersed in sea water, rinse thoroughly with fresh water and wipe with a dry cloth. • Do not pour water from a tap directly onto your watch. • Take off your watch before taking a bath. • If seawater enters the watch, place the watch in a box or plastic bag and immediately take it in for repair.
  • Page 69 Precautionary items and usage limitations CAUTION When Wearing Your Watch <Band> • Leather bands and rubber (urethane) bands will deteriorate over time due to perspiration dirt. Because of the natural materials, leather band will be worn, deformed, and discolored over time. It is recommended to replace the band periodically. • The durability of a leather band may be affected when wet (fading, peeling of adhesive), owing to the properties of the material. Moreover, wet leather may cause a rash. • Do not stain a leather band with substances containing volatile materials, bleach, alcohol (including cosmetics). Discoloration and premature aging may be occurred. Ultraviolet light such as direct sunlight may cause discoloration or deformation.
  • Page 70 • We recommend seeking the assistance of an experienced watch technician for sizing of your watch. If adjustment is not done correctly, the bracelet may unexpectedly become detached leading to loss of your watch or injury. Consult your nearest authorized Citizen service center. <Temperature> • The watch may stop or the function of the watch may be impaired in extremely high or low temperature. Do not use the watch in places where the temperature is outside the operating temperature range as stated in the specifications.

  • Page 71: Static Electricity

    Precautionary items and usage limitations <Strong Shock> • Avoid dropping the watch or subjecting it to other strong impact. It may cause malfunctions and/or performance deterioration as well as damage to the case and bracelet. <Static Electricity> • The integrated circuits (IC) used in quartz watches are sensitive to static electricity. Please note the watch may operate erratically or not at all if exposed to intense static electricity. <Chemicals, Corrosive Gasses and Mercury> • If paint thinner, benzene or other solvents or products containing these solvents (including gasoline, nail-polish remover, cresol, bathroom cleaners and adhesives, water repellent, etc.) are allowed to come into contact with the watch, they may discolor, dissolve or crack the...
  • Page 72 Precautionary items and usage limitations CAUTION Always Keep Your Watch Clean • Rotate the crown while it is pressed in fully and press the buttons periodically so they do not become stuck due to accumulations of foreign matter. • The case and band of the watch come into direct contact with the skin. Corrosion of the metal or accumulated foreign matter may result in black residue coming from the bracelet when exposed to moisture or perspiration. Be sure to keep your watch clean at all times. • Be sure to periodically clean the bracelet and case of your watch to remove accumulated dirt and foreign matter.

  • Page 73: Caring For Your Watch

    Precautionary items and usage limitations Caring for Your Watch • Wipe any dirt or moisture such as perspiration from the case and crystal with a soft cloth. • For metallic, plastic or synthetic rubber (polyurethane) band, clean it with soap and a soft toothbrush. Be sure to thoroughly rinse the band after cleaning to remove any soap residue. • For a leather band, wipe off dirt using a dry cloth. • If you will not be using your watch for an extended period of time, carefully wipe off any perspiration, dirt or moisture and store in a proper location, avoiding locations subject to excessively high or low temperatures and high humidity.

  • Page 74: Information

    Information Basic information of the altimeter Accuracy Measurable range –300 to 10 000 m assurance –4 °F (–20 °C) to 104 °F (40 °C) temperature ± ([Altitude difference from the Lower than 6 000 m: 2.5 m Unit for Assured point altitude calibration was indication accuracy 6 000 m or higher: 5.0 m executed] x 2% +15) m • The accuracy is guaranteed when temperature is constant after altitude calibration.
  • Page 75 Information Assured accuracy in various altitude and error range The table shows assured accuracy in various altitude and error range when altitude is calibrated at 0 m height for reference. Height (m) Assured accuracy (m) Error range (m) –100 ±17 –117 to –83 ±15 –15 to 15...
  • Page 76 Information Basic information of the compass Accuracy assurance temperature –4 °F (–20 °C) to 104 °F (40 °C) Assured accuracy ±10° • The accuracy is guaranteed when temperature is constant after 2 point correction. About the regions where the compass function may be hard to use In the patterned regions on the next page, the compass accuracy of the watch may not be maintained due to the characteristics of the geomagnetic field.
  • Page 77 Information Patterned regions...

  • Page 78: Specifications

    Specifications J280 Analog solar-powered watch Model Type Average monthly accuracy: ±15 seconds when worn at normal Timekeeping operation temperatures between 41 °F (+5 °C) and 95 °F (+35 °C) accuracy Operating ‒4 °F (‒20 °C) to 140 °F (+60 °C) temperature range • Time: Hours, minutes, seconds Display functions...

  • Page 79: Specifications

    Specifications • Solar power function Additional • Power reserve indication (in four levels) functions • Overcharging prevention function • Insufficient charge warning function (two-second interval movement) • Altitude indication function • Altitude calibration function • Compass indication function • Compass calibration function • Reference position check and adjustment function for altitude/compass indication hands Specifications and contents of this booklet are subject to change without prior notice.
  • Page 81 Model No. Cal.J280 CTZ-B8173...

This manual is also suitable for:

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