Sapphire Crystal Case Diameter: 45mm Case Thickness: 15mm Case: Stainless Steel Strap: Genuine Leather Buckle: Butterfly Deployment Movement: 25 Jewels Swiss Made Valjoux 7750 Swiss-Automatic Waterproof 5 ATM Special Features: Limited Edition 199pcs, Glassback, Day Date, Flyback Chronograph Display: Analog Color: Black Collection: men CO: Made in Switzerland