Longines Hydroconquest - Blue Dial - 41mm

It is recommended to have your watch serviced every 3-5 years to maintain its accuracy and water resistance.

Yes, with water resistance up to 300 meters, it is suitable for professional diving.

The watch winds automatically with the movement of your wrist. You can also manually wind it by turning the crown clockwise when the crown is in the closed position.

The L844 calibre movement offers a 72-hour power reserve.

Super-LumiNova® is a luminescent material used on the hands and markers of the watch to provide excellent visibility in low-light conditions.

The bracelet can be adjusted by removing or adding links. This should be done by a qualified watchmaker or jeweler.

The watch may need to be wound or serviced. Ensure the watch is fully wound by wearing it regularly or manually winding it if the power reserve is low. If the problem persists, contact a qualified watchmaker for service.

Immediately take the watch to a qualified watchmaker for inspection and repair to prevent damage to the movement.

The date may need to be adjusted. Avoid changing the date between 9 PM and 3 AM. If the issue persists, the watch may require servicing.