GUANQIN Women Men Couple Calendar Week Diamond Vintage Japanese Automatic Self-Winding Mechanical Wrist Watch Tungsten Steel Sapphire Crystal Waterproof Luminous Clock

This GUANQIN wristwatch features a Japanese automatic self-winding movement with 24 synthetic gemstone bearings for precise timekeeping and long kinetic energy reserve. The tungsten steel case and band are crafted through glossy angled engraving and precision machining for durability and comfort, with an ergonomic design and a safety double-open butterfly buckle made of skin-friendly material. The synthetic sapphire crystal mirror is second only to diamond in hardness, providing scratch resistance and high temperature protection. The watch includes a calendar, week display, and luminous function, with a see-through back cover to observe the movement. It is water-resistant to 50 meters, suitable for daily use such as hand washing and rain exposure, but not for swimming, diving, or hot baths. Ideal for business, casual, sport, and other occasions, it makes a great gift for Christmas, birthdays, Mother’s Day, and Valentine’s Day. Package includes the watch. Color: gold white couple.