Model: Croton Watches - Croton CC311136BSBK Case material: Combination of ceramic and stainless steel case with screw down case back Case dimensions: 40mm in diameter, 42mm with crown; 12.5mm thick Weight: 5.8 oz Movement: Quartz movement Crystal type: Scratch resistant mineral crystal Crown Push and pull crown Water resistant: 100 meters (330 feet) Dial color: Black dial Band type: Combination of ceramic and stainless steel band with butterfly clasp with push buttons Band length: Will fit 6 - 8 inch wrist Additional features: Chronograph function; Date display; Luminous hands Warranty: Limited lifetime warranty from Croton