IWC Schaffhausen Portofino Chronograph 39

The IWC Schaffhausen Portofino Chronograph 39, reference IW391503, has a 39 mm stainless steel case measuring 13 mm thick. A convex sapphire crystal with antireflective coating on both sides covers the white dial. The self-winding IWC-manufactured calibre 69355 provides 46 hours of power reserve. Central hacking seconds share the display with a chronograph that records hours, minutes and seconds. The movement runs at 28,800 vibrations per hour with 27 jewels and 205 components. A sapphire display back reveals the movement. IWC rates the watch to 50 metres. This reference uses a stainless steel bracelet.