IWC Schaffhausen Portofino Chronograph

The IWC Portofino Chronograph, reference IW391010, is a chronograph with a 42 mm steel case. The watch's case has a thickness of 13.6 mm. Calibre 75320 is self-winding and has a 44-hour power reserve. Behind convex sapphire glass with antireflective coating on both sides, the black dial has a day and date display and small hacking seconds. A mesh steel bracelet is on the watch. The watch has a water-resistance rating of 30 metres. The movement runs at 28,800 vibrations per hour. A total of 240 components and 25 jewels make up the movement.