IWC Schaffhausen Portugieser Tourbillon Mystère Rétrograde

The IWC Portugieser Tourbillon Mystère Rétrograde, reference IW504602, has a 44.2 mm case in 18-carat 5N gold. The watch has a flying minute tourbillon; the watch's case has a thickness of 14.9 mm. Calibre 51900 is self-winding and has a 168-hour power reserve and 44 jewels. The grey dial has a date display and a power reserve indicator. A dark brown alligator leather strap by Santoni is on the watch. The case carries a water-resistance rating of 30 metres. Arched-edge sapphire glass with antireflective coating on both sides covers the dial.