Portofino Automatic 40mm 18ct 5N Gold / Silver Dial / Brown Alligator Strap

WatchIntel verdict: consider. Good pre-owned, weak at full retail. The IW356504 gives buyers real 18ct gold, IWC finishing, a clean Portofino design and a reliable automatic movement. But mechanically, it does not compete with IWC manufacture-calibre pieces, and WatchCharts shows a major retail-to-market discount. The strongest value is likely pre-owned at sensible pricing, not new at full retail.

It uses the IWC Calibre 35110 / 35111. The IW356504 is not a manufacture-movement flex. It uses IWC's 35110 / 35111 automatic calibre family, with exact naming depending on source and likely production period. WatchBase lists this exact reference with Calibre 35111 and notes that Portofino 3565 models can house either 35110 or 35111 depending on year, while WatchCharts lists 35110. The correct WatchIntel framing is: reliable outsourced-base automatic, IWC-regulated and presented in a gold dress-watch package, but not a proprietary IWC manufacture calibre. The watch's value is design, precious metal case and IWC brand presence, not raw movement exclusivity.

Moderate to high. The watch has real precious-metal value and IWC design appeal, but a large part of the price is brand, gold-case positioning and luxury dress-watch status rather than movement exclusivity.

Good in principle, but do not oversell it. The 35110 / 35111 family is based on an outsourced automatic architecture and should be less exotic than IWC manufacture calibres, but WatchIntel should not claim universal parts access, cheap service or easy independent service without source-backed evidence. Authorized IWC service and qualified independent service routes should be framed separately.

Moderate liquidity, weak retail value retention. WatchCharts lists $6,595 secondary-market value versus $15,500 US retail as of Jun 2026. That suggests the watch can be interesting pre-owned, but buyers should not treat it as a strong resale piece.

The overall WatchIntel score is 58/100, combining movement quality, value, hype tax, serviceability, and resale liquidity.

It is 18 ct 5N gold / red gold, not stainless steel.

No. WatchBase lists a closed caseback, and authorized retailer text describes an engraved Portofino harbour caseback. Do not display transparent caseback for this reference.

Source data is mixed by year/source. WatchBase lists Calibre 35111 and notes Portofino 3565 models can house either 35110 or 35111 depending production year. WatchCharts lists 35110. WatchIntel should display 35110 / 35111 family pending exact-year verification, or store the exact source-backed movement for a verified production year.

No, not in the strict manufacture sense. It is an IWC-regulated outsourced-base automatic calibre family. The watch's appeal is the gold case, Portofino design and IWC finishing, not proprietary movement architecture.

Use dated regional sources only. IWC Europe lists around €15,200+ depending country page, and WatchCharts lists US retail at $15,500 as of Jun 2026. Do not show $5,200 for this gold reference.

Use dated market data only. WatchCharts lists estimated secondary-market value at $6,595 as of Jun 2026. Market prices vary by condition, year, box/papers, strap condition, service history and region.

Yes only if the buyer specifically wants a gold Portofino and buys at sensible market pricing. At full retail, the secondary-market discount makes the value case weak.