Citizen B51 Instruction Manual
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Citizen B51 Instruction Manual

Citizen B51 Instruction Manual

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  • Page 2: Table Of Contents

    CONTENTS Make Sure the Watch is Sufficiently Charged Before Use 1. Features ....................4 2. Explanation of Displays and Buttons ........... 5 Check that the second hand of the watch is moving correctly in 1-second interval 3. Setting the Time and Date ..............6 movement before use.

  • Page 3: Features

    1. Features 2. Explanation of Displays and Buttons This analog quartz watch incorporates a solar cell in the watch face. In addition to being Please refer to the illustration of the watch on the inside cover. equipped with a photoelectric power generation function that converts light energy to Time display Chronograph display Name...

  • Page 4: Setting The Time And Date

    3. Setting the Time and Date <Setting the Time> (1)Pull the crown out to the time correction position (2nd position) so that the second * If the crown is of the screw-tightened type, set the time and date after first loosening hand stops at the 0 second position.

  • Page 5: Characteristic Functions Of Solar-Powered Watches

    4. Characteristic Functions of Solar-Powered Watches When the watch becomes undercharged, the warning feature illustrated below is acti- vated and the display of the watch (movement of the second hand) changes. When undercharging is allowed to continue [Insufficient Charge Warning Feature] [Normal Time Display] [Time Setting Warning Feature] When undercharged...

  • Page 6: General Reference For Charging Times

    5. General Reference for Charging Times 6. Charging Procedure (Case of Charging by Illuminating Solar Cell Only) If the second hand of the watch is moving in 2-second interval movement or has stopped Charging times differ depending on the watch model (type of face, etc.). The charging due to undercharging, recharge the watch either by exposing the solar cell to light or by times shown in the table below are meant to only serve as a rough indicator of required swinging.

  • Page 7: Charging By Swinging The Watch

    Examples: B. Charging by Swinging the Watch * Charging in close proximity to an incandescent lamp or halogen lamp which can When there are few opportunities for charging the watch by exposing to light, occasion- easily reach high temperatures. ally charge the watch by swinging. In addition, for those persons who only wear the * Charging in locations that can reach high temperatures such as on an automobile watch for short periods of time (several days) or when there is little movement while dashboard.

  • Page 8: Warning Features

    7. Warning Features * Charging will not proceed efficiently if the watch is swung too fast or too slow. * When swinging the watch, although the sound of the generator turning can be When this watch becomes undercharged, a warning feature is activated and the display heard from inside, this is normal and does not indicate a malfunction.

  • Page 9: Using The Chronograph

    8. Using the Chronograph <Time Setting Warning Feature> After the watch has been recharged after having stopped due to being undercharged, This chronograph is able to measure and display time in 0.2 second (1/5 second) units up although the watch hands will begin to move, the time will not be correct. The second to a maximum of 59 minutes and 59 seconds.

  • Page 10: Zeroing The Chronograph Second Hand

    <Measuring Time with the Chronograph> 9. Zeroing the Chronograph Second Hand (1) Pressing button starts and stops the chronograph. The zero position of the chronograph second hand may rarely shift out of position after (2) Pressing button when the chronograph is stopped returns the chronograph to the replacing the battery or after the watch has been subjected to a strong shock.

  • Page 11: Helpful Hints In Using Your Watch

    10. Helpful Hints in Using your Watch <Correcting Procedure> (1) Pull the crown out to the correcting position (2nd position). Exposing this watch to light (1,000 lux or more) for at least 3 hours per day or wearing (2) Press button to set the chronograph second hand to the 0 position.

  • Page 12: Secondary Battery

    11. Secondary Battery 12. Using the Tachymeter (When Provided) The tachymeter feature is used to measure traveling speed such as that of an automobile. CAUTION: Handling of Secondary Battery In the case of this watch, the average speed can be approximately determined for a certain * Do not attempt to remove the secondary battery from the watch.

  • Page 13: Precautions

    13. Precautions 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. CAUTION: Water-resistance performance Examples of use There are several types of water-resistant watches, as shown in the following table.
  • Page 14 • If moisture has entered the watch, or if the inside of the crystal is fogged up and does your watch is not water-resistant, take it to your dealer. not become clear within a day, immediately take the watch to your dealer or Citizen NOTE: Avoid using solvents (thinner, benzine, etc.), as they may mar the finish.
  • Page 15 • Do NOT subject the watch to a strong shock such as dropping it onto a hard floor. CAUTION: Operating environment • Avoid using the watch in an environment where it may be exposed to chemicals or • Use the watch within the operating-temperature range specified in the instruction manual. corrosive gases.

  • Page 16: Specifications

    14. Specifications 1. Caliber No.: B51 2. Type: Analog solar-powered watch 3. Accuracy: Within ±15 seconds per month on average (when worn at normal tempera- tures: +5°C to +35°C/41°F to 95°F ) 4. Operating Temperature Range: -10°C to +60°C/14°F to 140°F 5.

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