Only watches that meet the requirements defined by international standard ISO 6425 can be labeled as «diving» watches. The twelve-pages from the International Organization for Standardization (ISO) on diving watches contain an exhaustive list of the essential qualities of a «wristwatch designed to withstand diving in water at depths of at least 100 meters and possessing a system to control the time.» The general requirements for a professional diving watch recognized as such by standard ISP 6425 are, among others, a minimum water resistance of 100 meters and the presence of a time preselection device (a 60-minute calibrated uni-directional rotating bezel), which is protected against accidental rotation or incorrect setting.
Hours, minutes, seconds and date
Width: 42 mm
Unidirectional rotating steel bezel with 60-minute scale and blue anodized aluminum insert
Metal applique applique skeleton Super-LumiNova filled numerals and indices
Sapphire with anti-reflective coating
Woven black rubber and ultra-resilient black synthetic fabric