IWC | YACHTCLUB II, REF 9509 YELLOW GOLD WRISTWATCH WITH DATE, BRACELET AND ADDITIONAL QUARTZ MOVEMENT CIRCA 1979 | Watches Online | 2020 | Sotheby's
IWC Ref. 9109, self-winding, centre-seconds, date, lapis-lazuli dial; “Yacht Club II”; 18K yellow gold | Important Modern & Vintage Timepieces | Hong Kong, July 23,2020