IWC Schaffhausen Da Vinci Perpetual Calendar Chronograph

The IWC Da Vinci Perpetual Calendar Chronograph, reference IW392104, is a chronograph with a 43 mm platinum case. The watch has a perpetual calendar; case thickness is 15.7 mm. Self-winding calibre 89630 has a 68-hour power reserve and 51 jewels. Arched-edge sapphire glass covers the silver dial with a day and date display, small hacking seconds, a moon phase display and a flyback function. Water resistance is rated to 30 metres. A see-through case back displays the movement. The movement has Côtes de Genève and perlage decoration. A black alligator leather strap by Santoni measures 20 mm wide.