Key Features :- Brand : Sugess Model : SU8230SW Functionality : 12 Hours Indicator, Tourbillon Features : Tourbillon, Enamel Dial (high temperature paint, 100 Years never become yellow), Blue Steel Hands and Screws, Weight Precision Balance Wheel, Exhibition Case Back Cover Movement : Seagull ST8230 Manual Winding Glass Material : Sapphire crystal Case Material : 316L stainless steel Band Material : 1x Alligator and 1x Leather Straps Diameter : 41mm Thickness : 11mm Lug Width: 21mm Product Highlights :- Precision Movement : Operated by the Complicated Seagull ST8230 Tourbillon movement, ensuring accurate timekeeping and reliability. Durable Construction : Crafted from 316L stainless steel, with a scratch-resistant sapphire crystal glass, this timepiece is built to last. Water Resistance : With a 5ATM water resistance rating (50 meters), this watch is suitable for everyday wear and light water splash. Additional Information :- Vibration : 3 Hz (21,600 BPH) Power Reserve : >40 hours English Instruction Manual included