IWC Schaffhausen Portugieser Chronograph

The IWC Portugieser Chronograph, reference IW371615, is a chronograph with a steel case measuring 41 mm in diameter. The watch's case has a thickness of 13 mm; self-winding calibre 69355 has a power reserve of 46 hours, 27 jewels and 205 components. The green 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. A see-through case back displays the movement. The movement runs at 28,800 vibrations per hour. Antireflective coating is applied to both sides of the convex sapphire glass.