The IWC Portofino Automatic 40 (reference IW356505) is a 40mm stainless steel with a automatic movement and 30m of water resistance. It carries a silver dial. On the secondary market it typically trades between $3,000 and $5,500.
Confirmed secondary-market sales WristWorth has tracked for this reference.
International Watch Company was founded in Schaffhausen by American watchmaker Florentine Ariosto Jones, blending Swiss craftsmanship with American industrial engineering principles. That hybrid DNA still defines IWC: technically serious watches in refined cases, without the flash of Geneva's jewelry-first houses. The Portugieser line (born from a 1939 request for marine chronometer accuracy in a wristwatch) is one of horology's great dress watches. The Pilot's Watch line traces back to the Mk 11 navigation watch built for the RAF. IWC's annual production of roughly 60,000 pieces and membership in the Richemont group give it strong distribution without diluting exclusivity.
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On the secondary market the IWC Portofino Automatic 40 (reference IW356505) typically trades between $3,000 and $5,500, with a midpoint around $4,250. Actual prices vary with condition, box/papers, and demand.
The IW356505 runs a automatic movement (caliber 35111).
The IW356505 has a 40mm Stainless Steel case, water resistant to 30m, with a silver dial.
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