How to set the time and date
The watch is provided with a date function and is so designed that the date changes once every 24 hours.
It also is provided with a 24-hour hand. When using it as a 24-hour hand, it can be used to check whether the displayed time is AM or PM.
When using the hand for dual time display (indicating the time of two different regions), pull out the crown to the second click, turn the crown to advance the hand and be sure that AM/PM is set correctly as the date changes.
The date changes around 12 o’clock midnight. Therefore, if the time is not properly set with regard to AM/PM, the date will change at 12 o’clock noon.
To adjust the date only on a day such as the next day after the completion of a month that has less than 31 days (February, April, June, September and November), please refer to Date adjustment at the end of the month.
CAUTION
Do not set the date between 9:00 p.m. and 1:00 a.m.
Amending the date during this time period may cause problems such as the date failing to change the next day.
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Make sure that the watch is working.
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Unlock the crown.
To carry out the procedure, please make sure that the watch is in working state. Please wind the mainspring when the watch is not working.
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Pull out the crown to the first click.
Pull out the crown to the first click
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Turn the crown counterclockwise to set the date.
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Pull out the crown to the second click and set the time.
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Push the crown back in to the normal position in accordance with a time signal.
Turn it until the previous day’s date appears.
Ex.) To display the date as “7,” then set this to “6.”
Turn the crown counterclockwise to set the date.
The date is advanced one day
Pull out the crown to the second click when the seconds hand is at the 12 o’clock position; the seconds hand stops on the spot.
Turn the crown to advance the hands until the date changes to the next. The time is now set for the A.M. period. Advance the hands to set the correct time.
To set the time correctly, be sure to turn back the minute hand a little behind the desired time and then advance it to the exact time.
The seconds hand immediately starts moving.
The telephone time signal service is helpful for setting the seconds hand exactly.
Next, set the 24-hour hand.
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Pull out the crown to the first click.
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Turn the crown clockwise to adjust the 24-hour hand.
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Push the crown back in to the normal position.
The seconds hand continues moving.
Pull out the crown to the first click
Turn the crown to set the 24-hour hand to the correct time.
The 24-hour hand moves clockwise
Push the crown back in to the normal position
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Relock the crown.
Date setting
The date is linked to the time and changes once every 24 hours, whether the watch is running or the crown is used to adjust the time. When the time is advanced across a day, the date is also advanced. Even when the time is set back across a day, the date will not be set back.
When the watch is running, the date changes at around midnight (between 11:45 PM and 0:30 AM).
When the crown is used to adjust the time, the date changes between 9:00 PM and 1:00 AM of the next day. The date will then change at around midnight (between 11:45 PM and 0:30 AM) when the watch is running normally.
When setting the time between 9:00 PM and 1:00 AM the next day
When setting the time between 9:00 PM and 1:00 AM the next day, first set the time back before 9:00 PM (or ahead of 1:00 AM) and make sure that the date is correct before setting the time.
When the time is advanced or set back to between 9:00 PM and 1:00 AM the next day, the date may not change at around midnight. However, the date will change to the day after the date at 9:00 PM (i.e., the date at 1:00 AM) after 1:00 AM. Also, when the watch is running, the timing at which the date changes will return to the normal timing.
Date adjustment at the end of the month
It is necessary to adjust the date at the end of February and 30-day months.
Ex.) To adjust the date in the A.M. period on the first day of a month following a 30-day month
The watch displays “31” instead of “1.” Pull out the crown to the first click.
Turn the crown counterclockwise to set the date to “1” and then push the crown back in to the normal position.
Pull out the crown to the first click
CAUTION
Return the screw down crown fully to its original position.
Do not set the date between 9:00 p.m. and 1:00 a.m.
Amending the date during this time period may cause problems such as the date failing to change the next day.
How to use the 24-hour hand
There are two ways to use the 24-hour hand as follows.
Distinguishing between AM and PM (Standard usage type)
The time indicated by the hour and minute hand is shown in 24-hour format.
【Example】
Hour hand, date:
Japan
24-hour hand:
Japan
Japan:
At 10:08 AM on 6th
Indicating the time of two different regions (As a dual time indicator)
It is possible to indicate the time of a region that is different from the time indicated by the hour and minute hand.
Please refer to How to set the time and date when changing the time display.
【Example 1】
Hour hand, date:
A region (Japan)
24-hour hand:
B region (Honolulu)
Hour hand
24-hour hand
Date
【Example 2】
Hour hand, date:
B region (Honolulu)
24-hour hand:
A region (Japan)
Hour hand
24-hour hand
Date
Japan:
At 8:08 AM on 6th
Honolulu:
At 3:08 PM on 5th