IWC Schaffhausen Portofino Chronograph

The IWC Portofino Chronograph, reference IW391015, is a chronograph with a steel case measuring 42 mm in diameter. The case has a thickness of 13.6 mm. Calibre 75320 is a self-winding movement with a power reserve of 44 hours, 25 jewels and 240 components. The silver-plated dial has a day and date display and small hacking seconds. The watch is on a mesh steel bracelet. A water-resistance rating of 30 metres applies to the case. The movement runs at 28,800 vibrations per hour. The sapphire glass is convex and has antireflective coating on both sides.