OLEVS Mechanical Watch Men 9910 ?Multi-Function Automatic Watch : Three-dimensional scale, layered dial, classic tourbillon watch design, multi-function dial design, month/week/calendar window matching, stylish and practical. ?Imported Movement: Automatic watch, no battery, imported mechanical movement, accurate time display, proper manual winding, can effectively reduce time deviation, energy reserve more than 45 hours. (Note: Self winding watches are automatically wound by the shaking of the arm when worn at ordinary times. If the watch is not worn for a long time, it needs to be wound manually for 20-45 laps when it is used again) ?High Hardness Material: Stainless steel strap, hidden butterfly buckle, comfortable to wear and easy to adjust. And the mirror surface is made of high-strength mineral glass, which has an anti-scratch effect.(Mens wrist watches strap length is 20CM/7.87 inches, if the strap is not long enough after purchase, you can contact the seller, the seller will provide the strap link for free) ?Luminous Waterproof Watch: OLEVS watch luminous watches use a new generation of luminous materials, smeared on the hands and dials, the luminescence is more durable. And with a 30-meter waterproof function, it is suitable for daily waterproofing and can withstand hand washing and rain. ?OLEVS Watches for Men: We provide 30-day unreasonable refunds and 24-month warranty for automatic mechanical watch. If you encounter problems when using the watch, you can contact us through and a professional after-sales service team. Will provide you with services. Case Shape: Round Case Thickness: 9mm Band Width: 11mm Band Material Type: Stainless Steel Boxes & Cases Material: Paper Model Number: 9910 Dial Window Material Type: Hardlex Feature: Back Light,shock Resistant,luminous,moon Phase,water Resistant Dial Diameter: 40mm Water Resistance Depth: 5bar Clasp Type: Push Button Hidden Clasp Band Length: 24cm Case Material: Stainless Steel Style: Fashion & Casual Movement: Automatic Self-wind Brand Name: Olevs Origin: Mainland China Item Type: Mechanical Wristwatches color: Gold Green Blue Black Style: Sports, Business, Leisure Characteristic: Luminous Waterproof Quality inspection: Advanced, Eu Ce Certification Design: TourbillonColor: Silver Blue silver Black gold Blue gold Green all Gold