Movement:3HD1
Drive: Double Spring
Winding method: Automatic winding
Power reserve:72 (hours)
Vibration frequency:28800 (times/hour)
Case diameter:43-49.5mm
Case thickness:14mm
Strap width:20-26mm
Mirror material: Sapphire Crystal
Case Material: Carbon Fiber
Strap material: Carbon Fiber
Water resistance:50 meters
Crown: Straight in

Model 2311 Feature：

Only 87g

Carbon Fiber Bezel
Carbon Fiber Strap
Super Luminous Dial
Double Spring drive 72 hours Power