IWC Schaffhausen Portugieser Constant-Force Tourbillon Edition "150 Years"

The IWC Portugieser Constant-Force Tourbillon Edition "150 Years", reference IW590202, has a 46 mm platinum case. This special edition has a tourbillon with an integrated constant-force mechanism. The case has a thickness of 13.4 mm. Calibre 94805 is manual-winding and has a 96-hour power reserve and 41 jewels. The white dial has a power reserve indicator and a moon phase display. The watch is on a black alligator leather strap by Santoni. A water-resistance rating of 30 metres applies to the case. Both sides of the arched-edge sapphire glass have antireflective coating.