Brand: Sugess Condition: New with tags Series: Tourbillon Master Model: SU8230STRC Function: 12 Hours Indicator Features: Tourbillon, Aventurine Dial, Blue Steel Hands and Screws, Weight Precision Balance Wheel, Exhibition Case Back Cover Diameter: 41mm Thickness: 11mm Glass Material: Sapphire Crystal Case Material: 316L Stainless Steel Band: Genuine Leather Buckle: Butterfly Buckle Movement: Manual winding Caliber: Genuine Seagull ST8230 Jewels: 21 Vibration: 3 Hz (21,600 BPH) Power Reserve: 60 Hours Water Resistant: 5ATM (50 Meters) English Instruction Manual: Yes