Tourbillon Watches Movement: flying tourbillon Movement model: CAL3H96 Power storage: 60 (hours) Vibration frequency: 28800 (times/hour) Drive: double spring drive Chain-up mode: manual chain-up Material: 316 L fine steel Case diameter: 42 mm Band Material: crocodile leather Case thickness: 13 mm Waterproof depth: life waterproof Band width: 22 mm Mirror: Synthetic sapphire mirror Weight: 85 g Bottom cover: Synthetic sapphire mirror