SKU: UB-8890 Brand Name: U-Boat Collection: Classico Model Alias: 8890 Band Color: Black Band Material: Leather Band Type: Strap Band Length: 8 inches Band Width: 20 MM Clasp: Pin Buckle Case Width: 40 mm Case Back: Exhibition Crystal: Sapphire Crystal Scratch Resistant Material: Stainless Steel Shape: Round Water Resistance: 100 m (330 feet) Calendar: Date at 6 o'clock Jewels: 26 Type: Automatic Power Reserve: 44 Hours Frequency: 28.800 v/pH Dial Color: Black