The iconic IWC Portugieser collection is technically and aesthetically ahead of its time and can guarantee high precision timekeeping whether you're in or out of the water. CASE Stainless steel case Diameter 40. 4 mm Height 12. 3 mm See-through sapphire glass back Water resistance 3 bar MOVEMENT 82200 Calibre IWC-manufactured movement Automatic, self-winding 60 hours Power Reserve Frequency 28800. 0 vph (4. 0 hz) 192 Components 31 Jewels Côtes de Genève, perlage FEATURES Sapphire glass, convex, antireflective coating on both sides Pellaton automatic winding Small hacking seconds