GUANQIN Women Men Couple Calendar Rhinestone Vintage Analog Automatic Self-Winding Mechanical Wrist Watch Stainless Steel Sapphire Crystal Waterproof Luminous Business Clock

This GUANQIN automatic mechanical wristwatch features a high-precision self-wind movement that powers itself through natural wrist motion, eliminating the need for batteries. The watch is crafted with a stainless steel case and band, finished with glossy angled engraving for durability and a refined look. Key features include a calendar display showing day and date, week indicator, luminous hands and markers for visibility in low light, and a see-through case back to observe the movement. The synthetic sapphire crystal mirror is highly scratch-resistant, second only to diamond, and offers high temperature and corrosion resistance. The double-open butterfly buckle is skin-friendly for easy wear and removal. With 50 meters water resistance, this watch is suitable for daily use such as hand washing and rain exposure, but not for swimming, diving, or hot baths. Designed for business, casual, sport, and other occasions, it makes an ideal gift for Christmas, birthdays, Mother’s Day, and Valentine’s Day. Package includes the watch and necessary documentation. Please carefully check the size guide in the product images to ensure proper fit.