General Information & Packaging Origin: Mainland China Item Type: Mechanical Wristwatch Model Number: 819.12.1084/819.32.1084/819.52.1084 Warranty: 2 Years Net Weight: 85g Packing Box: Carton Movement Movement: ST2148 Number of Jewels: 31 Movement Frequency: 28800 Reserve Hours: 40h Winding Mode: Automatic Winding Case & Strap Case Material: 316L Stainless Steel Crystal Material: Synthetic Sapphire Case Thickness: Approx. 11.3mm Case Diameter: Approx. 41mm Case Shape: Round Lug to Lug: Approx. 48.5mm Strap Material: Leather Clasp: Pin Buckle Strap Length: Approx. 18cm Strap Width: Approx. 21mm Features Waterproof: 5 Bar Features: GMT World Time