IWC Schaffhausen Portugieser Chronograph

The IWC Portugieser Chronograph, reference IW371447, is a chronograph with a steel case measuring 40.9 mm in diameter. The watch's case has a thickness of 12.5 mm; self-winding calibre 79350 has a power reserve of 44 hours, 31 jewels and 272 components. The black dial has small hacking seconds. The watch is on a black alligator leather strap, 20 mm wide. The case carries a water-resistance rating of 30 metres. The movement has Côtes de Genève and perlage decoration. The movement runs at 28,800 vibrations per hour. Antireflective coating is applied to both sides of the convex sapphire glass.