Brand : HAOFA Tourbillon
Movement: Manual Tourbillon
Movement model: Seagull Movement ST8230
Vibration frequency: 28800 times/hour
Drive: single-spring drive
Power reserve: 50 hours
Winding method: manual winding
Gem bearing: 23
Case material: 316L stainless steel
Case diameter: 43mm
Strap material: Italian calfskin
Case thickness: 12mm
Strap width: 22mm
Waterproof depth: 30 meters life waterproof
Mirror: synthetic sapphire
Features：
- High Quality ST8230 Turbillon Movement
- High Quality Polishing Case and Beveling
