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）