Ceramics Bezel (Front & back) Automatic Skeleton Watch

Movement: CAL.1HC50 automatic
Model: 1988
Drive: single-spring drive
Power reserve: 72 (hours)
Vibration frequency: 28800 (times/hour)
Winding method: automatic winding
Case Diameter: 49.5x43mm
Case thickness: 14mm
Strap width: 20-25.5mm

Bezel material: Ceramics Bezel (front and back bezel) 
Strap Material: Rubber
Waterproof depth: 50m life waterproof
Glass: Synthetic sapphire crystal
Buckle: Butterfly double snap
Crown: straight