Model: Croton Watches - Croton CC311125SSBK Case material: Combination of ceramic and stainless steel case with screw down case back Case dimensions: 45mm in diameter, 49mm with crown; 13mm thick Weight: 7.4 oz Movement: Swiss quartz movement Crystal type: Scratch resistant sapphire crystal Crown Push and pull crown Water resistant: 300 meters (1000 feet) Dial color: Black textured dial Lug size: 24mm Band type: Combination of ceramic and stainless steel band with fold over clasp with hidden double push button Band length: Will fit 6 1/4 - 8 1/2 inch wrist Additional features: Chronograph function; Date display; Luminous hands and markers Warranty: Limited lifetime warranty from Croton