Customized/Valentine's Day Gift/Engraving/40MM Diving Mechanical Watch/Automatic Winding Movement

The metal embossed dial that can be engraved can be customized with 5 to 25 English characters. Please note when placing an order. Movement: Japanese automatic mechanical watch movement, equipped with 24 rubies, self-winding movement with 40 hours of kinetic energy storage. Case: 316L steel sapphire crystal case Strap: steel strap Regarding mechanical watches: Q: What is an automatic mechanical movement? A: Mechanical watches are driven by winding, and there is an automatic winding rotor on the back of the automatic mechanical movement. It will rotate in response to the swing of the wrist to wind the mechanical watch. If worn for 8 hours or more a day, the mechanical watch can keep running for one day. If it is not worn for two days, it needs to be wound up and re-set to the correct time. Q: Will mechanical watches be easily scratched? A: Our watch case is made of 316L medical-grade steel, and the surface glass is made of sapphire crystal, which is second only to diamond in hardness, so it is relatively difficult to scratch. Q: Is the mechanical watch waterproof? A: Waterproof, all our watches have a waterproof rating of 50M or more, and the 46mm diving watch has a waterproof rating of 200M. Q: I just bought a mechanical watch, but it stopped/time slowed down soon after I put it on. What should I do? A: Mechanical watches are driven by winding. If the winding is not enough, it will stop/slow down. Please turn the crown clockwise 30 times to wind it. Q: How to maintain a mechanical watch? A: If you don’t wear your watch for a long time, please wind it up every few days, because the lubricating oil in the watch will cause inaccurate time if left to stand for too long. If better maintenance is needed, a 24-hour automatic winding watch box can be used.