GUANQIN Men Women Couple Lovers Day Date Vintage Wristwatch Analog Automatic Mechanical Self-Wind Sapphire Crystal Stylish Wrist Watch Stainless Steel Luminous Waterproof Business Clock

This GUANQIN automatic mechanical watch is powered by the natural movements of your wrist and does not require batteries. It features a stainless steel case and band, synthetic sapphire crystal mirror, and a see-through back cover. Key features include a calendar, week display, luminous hands, and a double-open butterfly buckle. Designed for business, casual, and daily wear, it is suitable for occasions such as Christmas, birthdays, anniversaries, Father’s Day, and Valentine’s Day. The watch has a 50-meter water resistance rating, allowing for hand washing and rain exposure, but not swimming or diving. Package includes the watch and a user manual. Please note that the watch must be worn 8-10 hours daily to maintain operation; if it stops, wind it clockwise 30-40 times. Avoid extreme temperatures and magnetic fields.