Citizen Eco-Drive E310 Instruction Manual
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Citizen Eco-Drive E310 Instruction Manual

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INSTRUCTION MANUAL

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Summary of Contents for Citizen Eco-Drive E310

  • Page 1 INSTRUCTION MANUAL...
  • Page 2 ENGLISH FRANÇAIS ESPAÑOL DEUTSCH ITALIANO PORTUGUÊS 中文 （繁体字） 中文 （簡体字）...
  • Page 3 Features Eco-Drive watches take a special cell and do not need periodical battery replacement. (→ page 9) The date window— The calendar—no date correction large and highly visible at the end of months (→ page 13)

  • Page 4: Table Of Contents

    Table of contents Part names and their main functions .............. 4 How to use the screw down crown ..............5 When leaving the watch unused for an extended period of time ....5 Charging the battery ..................6 Charging the battery ....................6 When the battery becomes short of power —Insufficient charge warning function ............
  • Page 5 Water resistance ....................24 Precautionary items and usage limitations ..........27 Troubleshooting ....................34 • The second hand moves only once every two seconds. • All hands stop moving. • The figures are not displayed upright. • The date is wrong. •...

  • Page 6: Part Names And Their Main Functions

    Part names and their main functions Minute hand Date Button B : For setting the calendar‑related functions Hour hand Crown: For setting the time, checking the date, etc. 24-hour hand: Goes around once Button A : a day For setting the date etc. Example of a button Second hand Press HERE.

  • Page 7: How To Use The Screw Down Crown

    7 How to use the screw down crown To release the crown Turn the crown to the left until it pops out slightly. To lock again Tighten the crown completely by pressing and turning it to right. 7 When leaving the watch unused for an extended period of time Pull out the crown to position All hands stop moving and the battery power is saved.

  • Page 8: Charging The Battery

    Charging the battery 7 Charging the battery This watch has a battery which is charged by exposing the dial to light such as direct sunlight or fluorescent lamps. To obtain the best performance: • Expose the dial to direct sunlight at least once a month. •...

  • Page 9: When The Battery Becomes Short Of Power-Insufficient Charge Warning Function

    7 When the battery becomes short of power—Insufficient charge warning function When the battery becomes short of power, the second hand moves once every two seconds—insufficient charge warning function. Charge the battery by exposing the dial to light. • After the battery is charged for a while, the The two-second second hand will move normally.

  • Page 10: Charging Time

    Charging the battery 7 Charging time Below are the approximate values when exposing to the light continuously. The charging time differs depending on the color of dial or other conditions. Use the table below only for your reference. Charging time to Charging time to start Illuminance Environment...

  • Page 11: After The Battery Is Fully Charged-Overcharge Prevention Function

    7 After the battery is fully charged— Overcharge prevention function After the battery is fully charged, charging automatically stops to prevent overcharging, which may damage to the battery, or affect the accuracy, Time for charging fully functions, and performance of the watch. when the battery is empty (approx.) —...

  • Page 12: Setting The Time

    Setting the time Pull out the crown to position Date window All hands stop moving. • To set the time accurately, pull out the crown when the second hand is at the 0‑second position. Second hand 24-hour hand...
  • Page 13 Turn the crown to set the time. All hands other than the second hand will move. • Take care of the position of the 24‑hour hand to set A.M. or P.M. correctly. • When you set the hands to around midnight, the date will change to the following day.

  • Page 14: Checking The Date, Month, And Year

    Checking the date, month, and year You can check the date, month, and year* Date window The crown The button position operation To check a — date To check a — month To check an Pressing year button A * Button A This watch shows the number of years passed since the last leap year.

  • Page 15: Perpetual Calendar

    Display examples of the date window Ex. 5th day When checking a date Ex. February When checking a month • “M” stands for Month. Ex. Next year of a leap year When checking an year • “L.Y. ” stands for Leap Year. The figures in the date window change slowly.

  • Page 16: Setting The Year, Month, And Date

    Setting the year, month, and date NOTICE: Do not operate between 23:00 and 0:30; otherwise, the date may not change even if the 24‑hour hand moves past midnight. The calendar setting has the following stages: Enter the setting mode Set the year Set the month Set the date (→...
  • Page 17 Enter the setting mode Date window Button B The figures in the date window move slightly up and down or right and left, or change to tell you that you can do the next operation. 1-1. Pull out the crown to position The month appears in the date window.
  • Page 18 Setting the year, month, and date Set the year Set the number of years passed since the last leap year. Date window Quick reference chart for number of years Button B passed since leap year Year Passed year Year Passed year 2016 Leap year 2020...
  • Page 19 2-1. Press button A repeatedly to set Setting value Window the year. When the current year is a leap year When two years have passed . Press button B . Now you can set the month. Go to the next page...
  • Page 20 Setting the year, month, and date Set the month Set the month—tens digit, then ones digit. Date window Button B Button A...
  • Page 21 3-1. Press button A to set the tens digit Month Setting value Window of the month. From January to September From October to December 3-2. Press button B . Now you can set the ones digit. 3-3. Press button A repeatedly to set Setting value Window the ones digit of the month.
  • Page 22 Setting the year, month, and date Set the date Set the date—tens digit, then ones digit. The selectable date differs Date window depending on the year and month you have set. Button B Button A...
  • Page 23 4-1. Press button A repeatedly to set the Setting value Window tens digit of the date. 5th day 30th day 4-2. Press button B . Now you can set the ones digit. 4-3. Press button A repeatedly to set the Setting value Window ones digit of the date.

  • Page 24: Eco-Drive Watch Handling Precautions

    Eco-Drive 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.
  • Page 25 <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. For optimal performance, we recommend having your watch inspected every 2‑3 years for proper operation and condition check.

  • Page 26: 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 “1bar”...
  • Page 27 Water-related use Minor exposure Swimming and Operate the crown to water (washing general washing Skin diving, marine Scuba diving using or button when the face, rain, etc.) work sports an air tank watch is wet...
  • Page 28 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.

  • Page 29: 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.
  • Page 30 Precautionary items and usage limitations CAUTION Precautions (continued) • 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. •...
  • Page 31 • It is recommended to take off the watch if it gets wet, even if the watch itself is water‑resistant. • Do not wear the band too tightly. Try to leave enough space between the band and your skin to allow adequate ventilation.

  • Page 32: Static Electricity

    Precautionary items and usage limitations <Magnetism> • Analog quartz watches are powered by a step motor that uses a magnet. Subjecting the watch to strong magnetism from the outside can cause the motor to operate improperly and prevent the watch from keeping time accurately.
  • Page 33 <Protective Stickers> • Be sure to remove any protective stickers that may be on your watch (case back, band, clasp, etc.). Otherwise, perspiration or moisture may enter the gaps between the protective stickers and the parts, which may result in a skin rash and/or corrosion of the metal parts. CAUTION Always Keep Your Watch Clean •...

  • Page 34: 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.
  • Page 35 <About Luminous Paint> The paint on the dial and hands helps you with reading the time in a dark place. The luminous paint stores light (daylight or artificial light) and glows in a dark place. It is free from any radioactive substance or any other material harmful to a human body or environment.

  • Page 36: Troubleshooting

    Troubleshooting If you have a problem with your watch, check the table below for a possible solution before calling for service. Reference Symptoms Remedies page The hands do not work properly The second hand moves only Charge the battery. once every two seconds. All hands stop moving.

  • Page 37: The Watch Does Not Work Properly

    Reset the watch, then adjust the properly even if you have tried reference position. the remedies on page 34. The watch does not move even Contact the Citizen Service Center or the – if the battery is fully charged. store where you purchased your watch.

  • Page 38: Checking And Correcting The Reference Position

    Checking and correcting the reference position The figures of the date window rotate referring to the “0” position as the initial position. If the “0” position, the reference position, has moved off because of shock or other reasons, the figures are not displayed upright. Correct the reference position following the procedure below when the figures are not displayed upright.
  • Page 39 1-2. Press and hold button B until the figures start moving to show the current reference position. Check the current reference position after the figures have stopped moving. Position of figures The status of the reference position “0”s of both digits are The reference position is correct.
  • Page 40 Checking and correcting the reference position Correct the reference position Date window Button B The figures in the date window move slightly up and down or right and left, or change to tell you that you can do the next operation. 2-1.
  • Page 41 2-2. Press button A repeatedly to display the “0” upright. Each time you press the button, the “0” moves step by step. • When you press and hold button A , the “0” moves seamlessly. 2-3. Press button B to advance to the ones digit setting. Each time you press the button, you can select the tens digit and ones digit alternately.

  • Page 42: Resetting The Watch

    Resetting the watch The watch may not work properly if it is affected by static electricity or shock. In this case, reset the watch, then adjust the reference position and set the time, year, month, and date again. Date window Pull out the crown to position All hands stop moving.
  • Page 43 Press buttons A and B at the same time. The reference position and the calendar are reset. • When the reset is performed, the figures in the date window move slightly up and down or right and left to tell you that the operation has been completed. Set the reference position.

  • Page 44: Specifications

    Specifications Model E31* Type Analog solar-powered watch Timekeeping accuracy Within ±15 seconds per month on average (when worn at normal temperatures between 5˚C/41˚F and 35˚C/95˚F) Operating temperature range –10˚C/14˚F to +60˚C/140˚F Display functions • Time: 24 hours, hours, minutes, seconds •...
  • Page 46 Model No.BT0＊ Cal.E310 CTZ-B8121...

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