Citizen C900 Abbreviated Instructions

To set the time on your Citizen C900 watch, pull the crown out to the second position. Turn the crown clockwise or counterclockwise to adjust the hour and minute hands to the correct time. Push the crown back to its normal position when finished.
To reset your Citizen C900 watch, pull the crown out to the second position, and press and hold the button located at the 2 o'clock position for about 10 seconds. Release the button and return the crown to its normal position.
If your Citizen C900 watch is losing time, it may need a battery replacement or could be exposed to magnetic fields. Check the battery and ensure the watch is not placed near electronic devices that emit strong magnetic fields.
To clean your Citizen C900 watch, use a soft cloth dampened with mild soapy water to gently wipe the case and band. Avoid using any chemical cleaners or submerging the watch in water. Dry with a clean, dry cloth.
If your Citizen C900 watch stops working, check the battery and replace it if necessary. If the issue persists, it may require servicing by an authorized Citizen service center.
To adjust the date, pull the crown out to the first position and rotate it clockwise until the desired date is displayed. Push the crown back to its normal position afterwards.
The Citizen C900 watch is water-resistant; however, avoid exposing it to water unnecessarily. Ensure the crown is fully pushed in to maintain water resistance. Avoid using the watch in hot water or steam environments.
If the chronograph is not functioning correctly, ensure the watch is not in a low power state due to battery depletion. Try resetting the chronograph by pressing the reset button. If the issue persists, consult an authorized service center.
It is recommended to service your Citizen C900 watch every 3-5 years to ensure optimal performance. Regular servicing includes checking the movement, water resistance, and cleaning the watch.
The Citizen C900 typically uses a SR927W battery. To replace it, open the case back using a watch case opener tool, remove the old battery, and insert the new one. Ensure the battery is placed correctly and reassemble the case back securely.