Overview From the Men’s Essential Collection. A perfect blend of precision and design, this rugged quartz chronograph is crafted of stainless steel, with secure screwdown caseback and blue ion finish tachymeter bezel. The blue patterned dial, with yellow accents, features three subdials, a date calendar, and LumiBrite hands. Chronograph timing provides measurement of up to 12 hours of elapsed time in 1/5-second increments. 10 bar, 100M Water Resistant Ssb321 Specifications Gender : Men's Movement: Quartz Chronograph Band Material : Stainless steel Band Color : Steel Dial Color : Blue Calibre: 8T67 Booklet: 8T67 Movement :21,600 vibrations per hour Power reserve : approximately 41 hours Case Size : Case Diameter : 43mm Case Thickness :12.9mm Case : Stainless steel case Web Crystal:Hardlex crystal Web Strap: Stainless steel bracelet Lug Width : 22mm Water Resistance : 10 bar, 100 meters (330 feet) Case Cross Reference: Chrono2 Case Shape : Round