About San Martin Men Wrist 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,Brand: San Martin 2,Model: SN030-Q 3,Movement: Top Quality Japan Seiko NH35 Automatic Movement 4,Accuracy:+-10s 5,Mirror:Sapphire Mirror 6,Mirror Coating:Anti-Reflection Coating 7,Case Material:Bronze 8,Bezel: Stainless Steel Bezel 9,Crown Material:316L Stainless Steel 10,Crown: Screw In Waterproof Crown 11,Band:Genuine Leather Band 12,Luminous:Swiss C3 Super Bright Luminous Powder 13,Back: Transparent Waterproof Back Cover 14,Waterproof:200m Waterproof 15,Case Diameter:39mm 16,Case Thickness:12mm 17,Strap Width: 20mm 18,Weight:81g 19,Pin Clasp 20,Feature:Dive,Luminous