About San Martin Men Sport Watch San Martin was founded in 2012 as a fashion brand of wristwatch. From 2002 to 2012, as a professional wristwatch enthusiast, San Martin began to modify various classic dive wristwatches and began to have a professional team. In 2002, we independently produced the first batch of customized men diving wristwatches. The wristwatches designed in recent years are highly praised by wristwatch enthusiasts. As a watch enthusiast to make watches, San Martin insists on making mens watches with excellent movements, high-grade materials and professional techniques, and refuses to make watches with poor automatic movements and techniques. At present, we have produced retro professional dive style, new style watches is in constant development. In the future, we will launch more classic or innovative watch models with super value San Martin, keep working hard for wrist watch lovers Thank you for you support San Martin To strive, to pursue, to explore, and never give in. The parameter of the watch for men 1,Model:SN007G-V4 2,Movement:Japan NH35 Automatic Movement 3,Case Material:316L Stainless Steel 4,Case Diameter:40 mm 5,Case Thickness:14 mm 6,Strap Width:20 mm 7,Mirror:Sapphire Mirror,AR Coating 8,Bezel:120 Clicks, Unidirectional Chronograph Bezel, Ceramic 9,Luminous:C3 Spuer Luminous 10,Crown:Screw-in Crown With 3D Shark Logo 11,Strap:316L Solid Stainless Steel Bracelet Waffle Fluorine Rubber Strap 12,Clasp:Folding Clasp 13,Water Resistant:200M 14,Weight: 163g