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

This GUANQIN wristwatch features a Japanese automatic self-winding movement with 21 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 skin-friendly safety double-open butterfly buckle. The synthetic sapphire crystal mirror is highly scratch-resistant, second only to diamond, and offers high temperature resistance and corrosion protection. The watch includes a calendar with day, date, and week display, luminous function for visibility in low light, and a see-through back cover to observe the movement. It is water-resistant to 50 meters, suitable for hand washing and rain, but not for swimming, diving, or hot baths. Ideal for business, casual, sport, and daily wear, it makes a great gift for Christmas, birthdays, Mother’s Day, and Valentine’s Day. Package includes the watch and user manual. Note: This product has size variants; please carefully check the size guide in the product images.