Seiko 5 Sports - SRPJ81K1

If the watch has stopped, manually wind it by turning the crown clockwise 20-30 times. If worn regularly, the automatic movement will wind itself.

Yes, the watch is water-resistant to 100 meters, suitable for swimming and showering.

The watch features an automatic movement with 24 jewels.

It is recommended to have the bracelet adjusted by a jeweler or watchmaker to ensure a proper and comfortable fit. It can be adjusted using pin removal or screw removal.

It's recommended to have the watch serviced every few years or if it starts showing any performance issues.

Lumibrite is Seiko's proprietary luminous paint that provides long-lasting illumination in low-light conditions.

The case is made of stainless steel.

Check if the watch has been magnetized. If so, have it demagnetized by a watchmaker. Also, ensure it is fully wound. If the problem persists, the watch may require servicing.

Ensure the watch is wound. If it still doesn't work, there may be an internal issue and professional servicing may be required.

This indicates moisture has entered the watch. Take it to a watchmaker for inspection and repair as soon as possible to prevent damage to the movement.