![WRISTWATCH, IWC, PORTOFINO, 1980s. Yellow gold 750. Ref. 3331. Flat case No. 2393765 with name engraved on the back. White dial with applied indices and gold-coloured hands, central second, date at 3h. WRISTWATCH, IWC, PORTOFINO, 1980s. Yellow gold 750. Ref. 3331. Flat case No. 2393765 with name engraved on the back. White dial with applied indices and gold-coloured hands, central second, date at 3h.](https://www.kollerauktionen.ch/CatCache/catcache.1/pictures/54557/54557_m_1.jpg)
WRISTWATCH, IWC, PORTOFINO, 1980s. Yellow gold 750. Ref. 3331. Flat case No. 2393765 with name engraved on the back. White dial with applied indices and gold-coloured hands, central second, date at 3h.
![IWC Preowned Portofino Automatic Moon Phase 40mm Blue Dial... for $5,900 for sale from a Trusted Seller on Chrono24 IWC Preowned Portofino Automatic Moon Phase 40mm Blue Dial... for $5,900 for sale from a Trusted Seller on Chrono24](https://cdn2.chrono24.com/images/uhren/26025706-qhyewpbxsrh9xzdm57x81wya-ExtraLarge.jpg)
IWC Preowned Portofino Automatic Moon Phase 40mm Blue Dial... for $5,900 for sale from a Trusted Seller on Chrono24
![IWC Portofino Reference IW459402, A Stainless Steel Automatic Wristwatch With Moon Phase, Circa 2021 Available For Immediate Sale At Sotheby's IWC Portofino Reference IW459402, A Stainless Steel Automatic Wristwatch With Moon Phase, Circa 2021 Available For Immediate Sale At Sotheby's](https://sothebys-md.brightspotcdn.com/dims4/default/8a2c7c0/2147483647/strip/true/crop/2000x2000+0+0/resize/800x800!/quality/90/?url=http%3A%2F%2Fsothebys-brightspot.s3.amazonaws.com%2Fmedia-desk%2F55%2Fc2%2Fc7cca2274beebd162afc9aa4adc9%2Fhkmrkt-cmf3m-t3-05.jpg)