1988 Ceramic Skeleton Mechanical watch

Movement : CAL.1HC5 Automatic Movement
Vibration Frequency : 28,800 Times/Hour
Winding Method : Automatic Winding
Drive : Single Spring Drive
Case Diameter : 49.5mm X 43mm
Case Thickness: 14mm
Bezel Material : Ceramic
Case Material : 316L Stainless Steel
Water Resistance : 50m
Mirror & Back Cover: Sapphire Glass
Strap Material : Silicon Rubber

Features
Ceramic Bezel (Front & Back)
Up To 72 Hours Power Reserve
Sapphire Glass