IWC Schaffhausen Portugieser Tourbillon Hand-Wound

The IWC Portugieser Tourbillon Hand-Wound, reference IW546302, has a 43.2 mm case in 18-carat 5N gold. The watch has a flying minute tourbillon; the case is 11.1 mm thick. The movement is manual-winding and has a 54-hour power reserve and 21 jewels. The silver dial, covered by arched-edge sapphire glass, has small hacking seconds. A dark brown alligator leather strap by Santoni is on the watch. The case's water-resistance rating is 30 metres. A see-through case back displays the movement. Calibre 98900 operates at a frequency of 28,800 vibrations per hour.