Movement: PT5000 movement, automatic mechanical movement, Case: Material-316L stainless steel 44 mm diameter (without crown) Length 51.9 mm (including lugs) 17.1 mm thickness (including table mirror) Lugs width 21mm (including the inside of the strap) Crystal: flat sapphire, with shadowless anti-reflective coating on the inside Dial: black enamel surface without sun pattern/green enamel surface with sun pattern, pin nails fill in luminous Pointer: stainless steel needle filled with BGW9 blue-green Luminous: ceramic ring BGW9 blue-green Hands BGW9 blue-green Surface Swiss luminous, icy blue light Crown: screw crown Bottom cover: screw-in bottom cover Strap: Brushed sand, professional diving strap, width 20*18mm Clasp: Insurance buckle Waterproof: 3000 meters waterproof