IWC Schaffhausen Aquatimer Perpetual Calendar Digital Date-Month

The IWC Aquatimer Perpetual Calendar Digital Date-Month, reference IW379405, is a chronograph with a 49 mm Ceratanium case. The watch has a perpetual calendar; case thickness is 19.4 mm, and the crown screws down. Self-winding calibre 89802 has a 68-hour power reserve and 51 jewels. Convex sapphire glass covers the black dial with a large double-digit date display, small hacking seconds and a flyback function. A black rubber strap is on the watch. Water resistance is rated to 100 metres. A see-through case back displays the movement. The movement's operating frequency is 28,800 vibrations per hour.