User manual CITIZEN WATCH F91

[. . . ] Power is generated when the watch is worn on the wrist and the second hand is moving at 1-second intervals. When the watch is removed from the wrist, the second hand moves at 10-second intervals, indicating that power is not being generated. When fully charged, the watch will run continuously for about six months without charging. To fully charge the watch after it has stopped due to insufficient charge requires about 15 days (continuous charging). [. . . ] Setting the Time and Calendar If the watch has stopped running due to insufficient charging or the second hand is moving at 2-second intervals when setting the time, first return the watch to 1second interval movement before setting the time by charging with reference to the section entitled, "For Proper Power Generation". If the crown is a screw lock type, the screw should be loosened before the operation. [Setting the Time] <When the second hand is moving at 1-second intervals (generating electric power display) / 2-second intervals (insufficient recharging warning display) / 2-second hitch movement (time setting warning display)> 1. Pull the crown twice to the time correction position when the second hand reaches the 0 seconds position. Make sure not to mistake AM for PM and vice versa when setting the time. · The date indication starts changing from around 9 PM and is completed around 1 AM. · A more precise setting of the time can be accomplished by advancing the minute hand 4 to 5 minutes from the correct time and then moving it back to the correct setting. Return the crown to its normal position in synchronization with the telephone time tone. The second hand will start to move and the watch will start ticking away from the correct time. <When the second hand is moving at 10-second intervals (indicating that power is not being generated)> 1. Pull the crown twice to the time correcton position when the second hand reaches the 0 seconds position. Return the crown to its original position in synchronization with the telephone time tone. The second hand will start to move and the watch will start ticking away from the correct time. 9 Crown 7 Time correction position Caution <If the stop position of the second hand shifts, and it does not stop at the 0 seconds position> If the crown is pulled out to the time correction position when the second hand is at another position than the 0-second, 10-second, 20-second, 30-second, 40second or 50-second position, or if the second hand does not stop at the 10second interval movement stop positions due to the influence of static electricity or physical impacts, perform the following procedure to set the correct time again. Pull the crown twice to the time correction position when the second hand is between 51 and 59 seconds. · In the 10-second interval movement condition (non-power generating condition) only, 1-second interval movement will take place for 10 seconds after the crown is pressed in. Pull the crown twice again to the time correction position when the second hand reaches the 0 seconds position. · Refer to <When the second hand is moving at 1-second intervals (generating electric power display) / 2-second intervals (insufficient recharging warning display) / 2-second hitch movement (time setting warning display)>, and 10 reset the time. <Setting the Calendar> 1. · If the date is adjusted while the time indication is between 9 PM and 1 AM, the date may not change even on the following day. For months with only 30 days and February, the crown must be operated to correct the date on the first of the following month. Characteristic Functions The display of this watch changes following the activation of the warning functions described below when the watch is insufficiently charged. [Normal Time Display] 1-second interval movement or 10-second interval movement When charging becomes insufficient 7 7 7 [Insufficient Recharging Warning Display] [Time Setting Warning Function] If insufficient charging further continues Stop When the watch is charged by wearing on the wrist, the watch hands begin to move. When the watch is charged When the time is set while charging is still insufficient 2-second interval movement 2-second hitch movement 12 When the time is set when the watch is fully charged 13 5. [. . . ] Timekeeping may become inaccurate if the watch is exposed to strong static electricity, such as is emitted from a TV screen. · Do NOT subject the watch to a strong shock such as dropping it onto a hard floor. · Avoid using the watch in an environment where it may be exposed to chemicals or corrosive gases. If solvents, such as thinner and benzine, or substances containing such solvents come in contact with the watch, discoloration, melting, cracking, etc. [. . . ]