Haofa brand watch focuses on the design and manufacture of high-end watches. It is a professional watch manufacturer integrating R & D, production and sales. With this rich watch manufacturing experience, advanced production technology and excellent after-sales service system, it is a watch brand worthy of consumers' trust. Product Description Movement: Flying Tourbillon Movement Model: 3HD6E Drive: Double Mainspring Drive Power Reserve: 72H Vibration Frequency: 28800(times/hour) Winding Method: Automatic Winding Jewel Bearings: 35 Case Diameter: 42mm Case Thickness: 10-14.9mm Strap Width: 22mm Case Material: 316 Stainless Steel Crown: Straight-in Waterproof Depth: 50M Waterproof Warranty:3 Years