IWC Schaffhausen Portugieser Tourbillon Hand-Wound

The IWC Portugieser Tourbillon Hand-Wound, reference IW546305, has a 43.2 mm case in 18-carat 5N gold. The watch has a flying minute tourbillon; the case measures 11.1 mm thick. Manual-winding calibre 98900 has a 54-hour power reserve, 21 jewels and 227 components. The blue dial has small hacking seconds under arched-edge sapphire glass with antireflective coating on both sides. The case carries a water-resistance rating of 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 measuring 22 mm wide is on the watch.