Model No:SD1993
Movement:Japan GMT NH34 Automatic Movement
Case Material:316L Stainless Steel
Back Material:316L Stainless Steel
Back :Screw-down Back
Case Diameter:41mm
Case thickness:13.5mm
Lug To Lug:48mm
Strap Width:20mm
Weight:180g(Steel Strap)/110g(Rubber Strap)
Strap:Soft Rubber Strap / 316L Stainless Steel Strap
Mirror:Anti Scretch Sapphire Mirror + AR Coating
Mirror Size:30.5*2.5mm (Diameter*Thickness)
Crown:Screw-down Crown
Crown Diameter:7mm
Bezel:Unidirectional Roation Ceramic Bezel
Luminous:BGW-9 Luminous
Water Resistant:30Bar
Hands Length:7.25*12*13mm((Hour Hand*Minute Hand*Second Hand)