IWC Schaffhausen Portugieser Tourbillon Hand-Wound "Metropolitan Boutique Edition"

The IWC Portugieser Tourbillon Hand-Wound "Metropolitan Boutique Edition", reference IW546304, has a 43.2 mm case in 18-carat 5N gold. This special edition has a flying minute tourbillon; the case has a thickness of 11.1 mm. Manual-winding calibre 98900 has a 54-hour power reserve and 21 jewels. The green dial has small hacking seconds beneath arched-edge sapphire glass. The watch has a dark brown alligator leather strap by Santoni. A water-resistance rating of 30 metres applies to the case. A see-through case back displays the movement. Côtes de Genève and perlage are among the movement's finishes.