IWC Schaffhausen Da Vinci Perpetual Calendar Chronograph

The IWC Da Vinci Perpetual Calendar Chronograph, reference IW392103, is a chronograph with a 43 mm steel case. The watch has a perpetual calendar; the case measures 15.7 mm thick. Calibre 89630 is self-winding and has a 68-hour power reserve and 51 jewels. The grey dial has a day and date display, small hacking seconds, a moon phase display and a flyback function under arched-edge sapphire glass. A black alligator leather strap by Santoni is on the watch. The case carries a water-resistance rating of 30 metres. Movement decoration includes Côtes de Genève and perlage.