IWC Schaffhausen Portugieser Tourbillon Mystère Rétrograde

The IWC Portugieser Tourbillon Mystère Rétrograde, reference IW504401, has a 44.2 mm platinum case. The watch has a flying minute tourbillon; the watch's case has a thickness of 15.7 mm. Self-winding calibre 51900 has a 168-hour power reserve and 44 jewels. Behind convex sapphire glass, the grey dial has a date display and a power reserve indicator. A black alligator leather strap is on the watch. The case carries a water-resistance rating of 30 metres. The rotor has an 18-carat gold medallion. The movement runs at 19,800 vibrations per hour.