IWC Schaffhausen Portofino Chronograph

The IWC Portofino Chronograph, reference IW391022, is a chronograph with a 42 mm steel case. The watch's case has a thickness of 13.6 mm. Self-winding calibre 75320 has a 44-hour power reserve. Behind convex sapphire glass with antireflective coating on both sides, the silver-plated dial has a day and date display and small hacking seconds. The watch has a black alligator leather strap, 20 mm wide. The case carries a water-resistance rating of 30 metres. The movement runs at 28,800 vibrations per hour. The movement consists of 240 components and has 25 jewels.