Citizen Perpetual Chrono A.T - Multicolor - 43mm

Expose your watch to any light source regularly. Natural sunlight is most effective, but artificial light also works. Avoid storing it in dark places for extended periods. A power reserve indicator helps monitor the charge level.

Atomic timekeeping is a technology where the watch automatically receives radio signals from atomic clocks. These signals carry precise time data, allowing the watch to synchronize automatically, ensuring ultimate accuracy.

The watch is water-resistant. However, it is not explicitly rated for swimming or showering unless specified in the detailed product specifications. It's best to consult the specific water-resistance rating (e.g., 30m, 50m, 100m) and use caution.

Use the crown and pushers according to the user manual. You will typically select your home city from a list of 43 supported cities, and the watch will automatically adjust to that time zone and date.

A perpetual calendar automatically accounts for the number of days in each month and leap years, meaning you do not need to manually adjust the date at the end of February or for months with fewer than 31 days.

Sapphire crystal is extremely hard and highly scratch-resistant, but not entirely scratch-proof. It can still be scratched by very hard materials like diamond or by extreme impact.

The watch may need charging. Expose it to sufficient light. If fully charged and still not running, ensure the crown is pushed in fully. If the issue persists, a manual reset or professional service may be required.

Ensure the watch is placed in an area with clear access to radio signals (e.g., near a window, away from electronic interference). Check that the correct city is set and that you are within a signal reception zone. Try manual synchronization as per the user manual.

Verify that the perpetual calendar is correctly set for the current year and month, and that the atomic synchronization has successfully updated the time. Manual adjustment may be needed if synchronization is not possible.

The chronograph hands may need to be reset manually. Consult the user manual for instructions on how to reset the chronograph mechanism. This often involves pulling out the crown and using the pushers in a specific sequence.