GUANQIN Men Women Couple Calendar Week Rhinestone 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 21 synthetic gemstone bearings for precise timekeeping and a long kinetic energy reserve. The watch winds automatically with wrist movement, transferring energy to the mainspring. It includes a calendar displaying day and date, plus week and luminous functions. The see-through back cover allows observation of the movement. The case is made of tungsten steel, with a tungsten steel band and an ergonomic design for comfort. The safety double-open butterfly buckle is skin-friendly. The watch has a high hardness synthetic sapphire crystal glass mirror with anti-reflective coating, rated 9 on the Mohs scale. It is water resistant to 50 meters (164 feet), suitable for rainy days and hand washing. Intended for business, casual, sport, or any occasion, it makes a great gift for Christmas, birthdays, Father’s Day, and Valentine’s Day. Package includes the watch. Note: Avoid extreme temperatures and magnets. Color may vary slightly from display.