GUANQIN Skeleton Automatic Self-Winding Vintage Wristwatch Men Mechanical Business Wrist Watch Stainless Steel Genuine Leather Sapphire Crystal Waterproof Clock Luminous

GUANQIN adheres to the concept of combining modern design with fashion and has a superb craftsmanship and a sophisticated watchmaking team. With professional skills and love for the watch industry, they design watches that highlight quality for you. ADVANCED QUALITY: Battery free. Automatic movement provides energy for the watch. It supports automatically winding and manually winding. If you wear it more than 10 hours a day, you will never need to manually wind it up. High hardness synthetic sapphire crystal glass mirror, bring convenient for you. The IP plating of this watch is different from other inferior plating, it is expensive with a luxurious appearance, which will never fade away or comes off. The watch dial and back are openworked design, showing the precise internal structure of the mechanical watch, and perfectly showing the complexity and artistic sense of machining movements. Gears, balance wheels, hairsprings, each tiny part cooperates with each other to give the watch vitality. With its stainless steel case, skeleton dial and back and steel or leather band, it overturned the traditional craftsmanship in the industry. Adopted brushed and polished finish on case and bezel, providing a comfortable wearing experience. How to maintain this mechanical watch? When using for the first time, please manually wind up the watch to get enough energy to keep it working well, rotating the crown about 30-40 laps can get enough energy for the watch. If you wear the watch less than 8 hours a day, please manually wind up your watch to keep working well. The watch is 50M waterproof for daily use. But should not be used in bathing, sauna and other multi-water or high warm environments. Preventing the waterproof rubber ring from being inflated or contracted by the temperature will cause voids and accelerate aging, which will affect the waterproof function.