Product Information:

Case diameter: 49mmx42mm
Case thickness: 14mm
Movement: E.3H41Automatic Tourbillon Movement
Vibration frequency: 28800 (times/hour)
Drive: double spring drive
Winding method: automatic winding
Gem Bearings: 35
Bezel material: Ceramics Bezel
Case Material : Stainless steel
Strap material: Rubber
Waterproof depth: 50m life waterproof
Mirror back cover: Artificial sapphire

Model 1901-2 Features：
Automatic Tourbillon Movement
Free-sprung Balance
Ceramics Bezel
Double Barrel
72 Hours Power