Product Information:

Case diameter: 49mmx42mm
Case thickness: 14.5mm
Lug to Lug: 49.5
Movement: E.3H41Automatic Tourbillon Movement
Vibration frequency: 28800 (times/hour)
Drive: Double spring drive
Winding method: Automatic winding
Gem Bearings: 35
Bezel material: Carbon fiber
Case Material : Titanium-magnesium alloy
Strap material: Rubber
Waterproof depth: 50m life waterproof
Crystal back cover: Artificial sapphire

Model 1901-1 Features：
Automatic Tourbillon Movement
Free-sprung balance
Carbon Fiber Bezel
Double Barrel
72 Hours Power
Titanium-magnesium Alloy Material Case