IWC Schaffhausen Aquatimer Chronograph "Cousteau Divers"

The IWC Aquatimer Chronograph "Cousteau Divers", reference IW378203, is a chronograph with a 43 mm steel case. The case has a screw-down crown; self-winding calibre 79320 has a 44-hour power reserve and 25 jewels. The blue dial has a day and date display. The watch is on a black rubber strap, 16 mm wide. The case carries a water-resistance rating of 120 metres. The movement has Côtes de Genève and perlage decoration. The movement runs at 28,800 vibrations per hour. Antireflective coating is applied to both sides of the convex sapphire glass.