Between approximately 9:00 PM and 3:00 AM, many movements are already preparing for or currently executing the automatic date change.

During this time, small components within the date mechanism mesh together. If you additionally adjust the date via the quickset feature during this period, two mechanisms may act on the date display simultaneously. This can put unnecessary strain on the movement and, in worst-case scenarios, cause damage.

What does quickset date adjustment mean?

With the quickset date feature, you can change the date directly without having to turn the hands past midnight multiple times for each individual day. Depending on the model, the crown is usually pulled out to the first position and then turned in a specific direction. You can find exact operating instructions in the manual for your timepiece.

How do I safely set the date?

If you are unsure which half of the day your watch is currently set to, it is best to proceed as follows:

1. Pull the crown out to the time-setting position.

2. Set the hands to approximately 6:00 AM first.

3. Next, use the quickset date feature to set the desired date.

4. After that, set the correct time.

5. Push the crown fully back into its original position.

This ensures that the date mechanism is not in its automatic switching phase during the quickset adjustment.

Why specifically 6:00 AM?

At 6:00 AM, the movement in most models is well outside of the automatic date-switching window. This allows you to use the quickset feature safely.

Does 9:00 PM to 3:00 AM apply strictly to every watch?

Not necessarily. The exact timeframe can vary slightly depending on the caliber. 9:00 PM to 3:00 AM is therefore a safe rule of thumb to keep in mind when setting the date.

What if the date changes at noon instead of midnight?

Then the 12-hour cycle of your watch is likely off by half a day. In this case, turn the hands forward by another 12 hours and then set the correct time. After that, the date should switch at night again.