Experience the pinnacle of Mediterranean elegance with the IWC Portofino IW510103. This 45mm stainless steel masterpiece features a silver-plated dial with gold-tone accents and the legendary in-house Caliber 59210 movement, offering a massive 192-hour power reserve. Perfect for enthusiasts who value the weekly ritual of manual winding and timeless Swiss craftsmanship.
Brand New Santoni for IWC Strap!
| Has Box | No |
|---|---|
| Has Papers | No |
| Model (Cert) | IW510103 |
| Case size | 45mm |
| Case material | Stainless Steel |
| Movement type | Manual Wind |
| Condition | This timepiece has undergone a thorough inspection of water resistance, accuracy, functionality and condition to determine the level of reconditioning required to meet our strict standards. It has als |
| Crystal type | Sapphire Crystal |
| Gender | Male |
| Make (Cert) | IWC |
| Origin | Switzerland |
| Strap material | Leather |
The IWC Portofino IW510103 is the technical flagship of the Portofino collection, a line originally inspired by the relaxed, luxury lifestyle of the Italian Riviera. Encased in a polished 45mm stainless steel frame, this timepiece combines understated dress watch aesthetics with serious mechanical muscle.
At its heart lies the IWC-manufactured Calibre 59210, a robust manual-winding movement designed to run with chronometric precision for a full eight days (192 hours). To ensure absolute accuracy, the movement is engineered to run for nine days, but is mechanically stopped after eight to avoid the reduced torque of a winding-down mainspring. The movement’s exquisite “Côtes de Genève” finish and 30 jewels are visible through the transparent sapphire crystal caseback.
The silver-plated dial is a study in balance, featuring:
Functional Elegance: A power reserve indicator at 9 o’clock, a date display at 3 o’clock, and a small hacking seconds sub-dial at 6 o’clock.
Premium Details: Solid yellow gold-plated leaf-shaped hands and applied index markers that catch the light with every movement.
Signature Comfort: Paired with a dark brown alligator leather strap handcrafted by the renowned Italian leather goods house, Santoni, specifically for IWC.
This timepiece is water-resistant to 3 bar (30 meters) and features a scratch-resistant sapphire crystal with anti-reflective coating on both sides, ensuring durability and legibility for the modern collector in 2026.

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