Citizen 8730 Instruction Manual
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Citizen 8730 Instruction Manual

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INSTRUCTION MANUAL

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Summary of Contents for Citizen 8730

  • Page 1 INSTRUCTION MANUAL...
  • Page 2 ■  F ully charge your watch before use by exposing it to sufficient light ■ The second hand will move at 2-second intervals when the watch is insufficiently charged. Charge your watch as indicated in "Guide to Charging Time" (p. 22). ＊...

  • Page 3: Table Of Contents

    Table of Contents 1. Your Watch ..................04 2. Operating the Crown ................05 3. Part Names ..................06 4. Setting the Time and Date ..............08 5. Adjusting the Time and Date .............. 10 • Adjusting the day of week ..............10 •...

  • Page 4: Your Watch

    1. Your Watch ◎  T his watch includes a solar cell surrounding its face and is driven by converting solar energy into electric energy. Other Features 1. For the date, the numbered day of the month is indicated using a special hand, and the month and day of the week are indicated in display windows.

  • Page 5: Operating The Crown

    2. Operating the Crown There are two models available for the crown: normal and screw lock. In the case of normal crown watch, simply pull out the crown. <Operating the screw lock crown> 1. Turn the crown to the left. 2.

  • Page 6: Part Names

    3. Part Names <Illustration 1> Date hand Month adjustment button ●  U se an object with a slender Month tip to press the hidden push (English only) button. Day of week (English only) Crown Time adjustment position (Time and day of week adjustment) Second hand Date adjustment position (Day of month and moon phase adjustment)
  • Page 7 <Illustration 2> Date hand Month adjustment button Month (English only) Day of week (English only) Crown Time adjustment position (Time and day of week adjustment) Second hand Date adjustment position (Day of month and moon phase adjustment) Moon phase Normal position This manual describes the operation procedures for watch models of the illustration 1.

  • Page 8: Setting The Time And Date

    4. Setting the Time and Date When adjusting both the time and date, it is convenient to make settings in the order of "day of week", "moon phase", "month and day of month", and then "time of day". When the day of month to be Adjusting the day of week Adjusting the...
  • Page 9 Setting the time Adjusting the day Adjusting the • Crown in position 2 of month month • Advance the minute • Crown in position 1 • Press the month • Turn the crown to hand and hour hand adjustment button by turning the the left crown to the right...

  • Page 10: Adjusting The Time And Date

    5. Adjusting the Time and Date Adjusting the day of week 1. Pull out the crown to position 2 (time and day of week adjustment). 2. Turn the crown to the right (clockwise) to set the day of week for the current day. •...
  • Page 11 <Viewing the moon phase> The moon phase indicator does not display the exact shape of the moon. Use it as a guide to estimate the moon phase. New moon First quarter moon Full moon Last quarter Moon phase: Moon phase: Moon phase: Moon phase: Day 0...

  • Page 12: Adjusting The Day Of Month And Month

    Adjusting the day of month and month 1. Pull out the crown to position 1 (date adjustment position). Month adjustment 2. Adjust the day of month and the month. button • The day of month rotates to the right when the crown is turned to the left.
  • Page 13 [When the day of month to be set is the 1st or 2nd] ① First, temporarily set the day of month to the 30th. ② Press the month adjustment button to temporarily set the month to one month before the current month. Example: Set to December when making settings for January.

  • Page 14: Setting The Time

    Setting the Time 1. When the second hand reaches the 12:00 position, pull out the crown to position 2 (time adjustment position). 2. Turn the crown to the right (clockwise) to Crown adjust the time. Adjust the time while paying attention to a.m./p.m.
  • Page 15 [NOTE] ① If you adjust the day of month when a time between 9:00 p.m. and 12:00 midnight is being displayed, the day of month sometimes does not change to the next day even if the actual date changes. Avoid changing the day of month during this time period.

  • Page 16: Solar Power

    Solar Power 6. Solar Power Function This watch uses a rechargeable cell to store electrical energy. When the watch is fully charged, it will maintain its accuracy for about 6 months. <Ensuring best operation of the watch> Always store the watch in a bright location for best results. ◆...
  • Page 17 ◆ Wearing clothes with long sleeves makes it difficult for the watch to get the necessary light, resulting in insufficient charging. We recommended that you charge the watch for a long time in direct sunlight once a month. [NOTE] Do not charge on surfaces that can easily become hot, such as a car dashboard.

  • Page 18: Characteristics Of The Eco-Drive Watch

    7. Characteristics of the Eco-Drive Watch ◎ When the watch is insufficiently charged, the indication will be changed as follows: [Normal indication] The second hand moves at 1-second intervals The watch has been insufficiently charged because the watch face has not received sufficient light As the battery recharges The display time will be incorrect because the watch has stopped due to insufficient charge.
  • Page 19 [Insufficient charge warning] [Stopped status] The second hand moves at 2-second intervals The watch stops As rechargeable cell capacity diminishes without charging 2 second 2 second The second hand starts moving at 2-second intervals. The watch must be subjected to enough light for a sufficient charge until the watch hands begin moving.

  • Page 20: Insufficient Charge Warning Function

    Insufficient Charge Warning Function When the watch is insufficiently charged, the second hand begins moving at 2-second intervals to notify you that the watch charge is insufficient. Although the watch keeps accurate time during this period, the watch will stop completely if operation with an insufficient charge continues 2 second for approximately three or more days.

  • Page 21: Overcharging Prevention Function

    Overcharging Prevention Function No matter how much the watch is charged, it will not affect the rechargeable cell, timekeeping, functions or performance of the watch. When the rechargeable cell becomes fully charged by exposing the watch face to light, the overcharging prevention function is automatically activated to prevent the battery from being charged further.

  • Page 22: Guide To Charging Time

    Guide to Charging Time 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...
  • Page 23 CAUTION Charging precautions ◆ Do not charge the watch in a high-temperature environment (about 60°C / 140°F or more). Overheating while charging can cause the watch exterior to become discolored, the watch to deform or the movement to be damaged. Example: •...

  • Page 24: Precautions

    Precautions WARNING: Water-resistance performance There are several types of water-resistant watches, as shown in the following table. The unit "bar" is roughly equal to 1 atmosphere. * WATER RESIST(ANT) xx bar may also be indicated as W.R. xx bar. Indication Minor exposure to water Specifications Case...
  • Page 25 For correct use within the design limits of the watch, confirm the level of water- resistance of your watch, as indicated on the dial and case, and consult the table. Examples of use Moderate exposure to Operation of the Marine sports Scuba diving water (washing, kitchen crown or button...
  • Page 26 • If moisture has entered the watch, or if the inside of the crystal is fogged up and does not become clear within a day, immediately take the watch to your dealer or Citizen Service Center for repair. Leaving the watch in such a state will allow corrosion to form inside.
  • Page 27 • If seawater enters the watch, place the watch in a box or plastic bag and immediately take it in for repair. Otherwise, pressure inside the watch will increase, and parts (crystal, crown, buttons, etc.) may come off. CAUTION: Keep your watch clean. •...
  • Page 28 CAUTION: Operating environment • Use the watch within the operating-temperature range specified in the instruction manual. Using the watch where temperatures are outside the specified range, may result in deterioration of functions or even stoppage of the watch. • Do NOT use the watch in places where it is exposed to high temperature, such as in a sauna.
  • Page 29 Your watch needs inspection once in every two or three years for safety and long use. To keep your watch water-resistant, the packing needs to be replaced regularly. Other parts need to be inspected and replaced if necessary. Ask for Citizen geuine parts upon replacement.

  • Page 30: Specifications

    8. Specifications 1. Cal. No. : 8730 2. Type : Analogue solar powered watch 3. Time accuracy : Average monthly deviation ±15 seconds when used in room temperature (+5°C to +35°C / 41°F to 95°F) 4. Acceptable temperature range : -10°C to +60°C / 14°F to 140°F 5.
  • Page 32 Model No.BU0＊ Cal.873＊ ⑤ CTZ-B8126...

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