IWC Schaffhausen Portugieser Chronograph

The IWC Schaffhausen Portugieser Chronograph IW371604 is a chronograph with a stainless steel case measuring 41 mm across. The case stands 13 mm thick and carries a sapphire display back. A silver plated dial sits under a convex sapphire crystal with antireflective coating on both sides. The self-winding calibre 69355 drives the watch, offering a 46 hour power reserve. Beyond the chronograph function with minutes and seconds, the dial also carries small seconds. The case is rated to 30 metres of water resistance. A black alligator leather strap is fitted to the watch, 20 mm at the lugs.