OLEVS Watch for Men Green Watch Skeleton Automatic Mens Watches Stainless Steel Waterproof Fashion Luxury Two Tone Watches No Battery Sapphire Gold Watches Self Wind Tourbillon Men Watch - SHICHENG, 3186

• New and Fashionable Design: This Automatic Watch Adopts Artificial Sapphire Mirror, Tungsten Steel Stainless Steel Case, Butterfly Double Clasp and Hollow Flywheel Design. The Unique Design Meets the Needs of Different Qccasions Without Battery : Power is Generated Automatically by the Movement of Your Arm.(Automatic mechanical watches need to be worn for 8-12 hours a day. Please Turn the Crown Clockwise 30-40 Full Turns When Power is Insufficient or the First Use.) Durable watches: Watch features anti-reflective sapphire crystal glass with a Mohs hardness of 9, making it resistant to breakage, fingerprints, and friction. It's also 50M pressure waterproof and three-degree nano-level sealed waterproof About the strapL: Watches meet CE safety certification index, CE certification, and Swiss certification standards. The strap in tungsten steel, and the strap length is 7.87 inches (20 cm). If the length is not enough, please inform us by email Luminous Function: This watch also includes a luminous function, making it easy to read at night. To activate the function, simply use strong light for 30-40 seconds (such as the flashlight on your phone) when using it for the first time