Longines Legend Diver Watch - Silver - 39mm

Yes, with 300 meters of water resistance and a dedicated diving flange, it meets the requirements for recreational scuba diving.

It is generally recommended to have your mechanical watch serviced every 3 to 5 years to ensure movement accuracy and seal integrity.

No, the Legend Diver uses a mechanical automatic movement that winds itself through the natural motion of your wrist.

If you fully wind the watch, it will continue to run for 72 hours while sitting still without needing to be worn.

Yes, the watch features standard lug widths that allow for a variety of aftermarket straps, though using authentic Longines replacements is recommended.

The automatic movement needs winding. Manually rotate the crown clockwise about 20-30 times to build up the power reserve.

Ensure the crown is fully unscrewed. If it remains stiff, do not force it; consult a certified Longines service center.

This indicates a seal failure. Keep the watch away from further water and take it to an authorized technician immediately.