GUANQIN Men Women Couple Mechanical Self-Wind Wristwatch Automatic Sapphire Glass Clock Male Lady Waterproof Watches Date Luminous

GUANQIN automatic mechanical wristwatch for men and women, powered by natural wrist movements (no battery required). Crafted from 316L stainless steel with a double-open butterfly buckle strap for secure wear. Features a synthetic sapphire crystal mirror with high light transmission, scratch resistance, and hardness second only to diamond. Water-resistant to 50 meters, suitable for hand washing, rain, sweat, splashes, and cold baths. Includes calendar function, super luminous hands and markers, and engraved GUANQIN logo inside the dial. Case diameter: 40mm (men) / 32mm (women); case thickness: 12.4mm (men) / 10mm (women); band length: 24cm (men) / 18cm (women); band width: 19mm (men) / 16mm (women). Ideal for daily wear, business, parties, and gifting on occasions such as Christmas, birthdays, anniversaries, Father’s Day, Mother’s Day, graduation, and Valentine’s Day. Package includes the watch. Note: Mechanical watches must be worn 8-10 hours daily to maintain power; if not worn for extended periods, wind clockwise 30-40 times to restart. Please carefully check the size guide in the product images to ensure proper fit.