flying tourbillon, 316 steel integrated case, artificial sapphire glass, manual movement, cow leather strap on the first layer, various choices. Movement: CAL.008.10 Movement model: 1038 Drive: single bar drive Power storage: 42 (hours) Vibration frequency: 28800 times/hour) Chain-up mode: manual chain up Case diameter: 42 mm The thickness of the case: is 13 mm Band width: 22 mm Case Material: 316 fine steel Band Material: Italian calfskin Waterproof depth: 30 m domestic waterproof Mirror: s artificial sapphire Buckle: folding buckle Crown: straight in