About the Model
The IWC Portugieser Chronograph (ref. IW371609) updates one of the brand’s most recognisable designs with subtle mechanical and aesthetic refinements. This reference preserves the clean, nautical-inspired layout of the original while introducing a more contemporary black dial and an exhibition caseback – signalling the mechanical shift beneath the surface.
Housed in a 41mm stainless steel case, the watch features a pared-back dial design with applied Arabic numerals, feuille hands, and twin subdials positioned at 6 and 12 o’clock. Inside is the in-house calibre 69355, a column-wheel chronograph movement visible through the sapphire display back, offering 46 hours of power reserve. Water-resistant to 30 m, the watch maintains a slim, elegant profile despite the added complexity.
Originally released as part of IWC’s 150th Anniversary collection in 2018 and incorporated into the core line-up the following year, the IW371609 has become a staple in the modern Portugieser catalogue – offering collector-respected pedigree with contemporary movement architecture and everyday versatility.Read More
Specifications
Case
| Size (mm) | 41 |
|---|---|
| Bezel Material | Stainless Steel |
| Crystal | Sapphire |
| Dial Color | Black |
| Dial Numbers | Arabic Numerals |
| Material | Stainless Steel |
Bracelet / Strap
| Strap Color | Black |
|---|---|
| Strap Material | Alligator Leather |
| Strap Clasp | Folding Clasp |
| Strap Clasp Material | Stainless Steel |
Movement
| Base Caliber | Calibre 69355 |
|---|---|
| Movement | Selfwinding |
| Power Reserve | 46 hours |
Other
| Water Resistance | 30m |
|---|---|
| Number of Jewels | 27 |
| Functions | Hours, Minutes, Seconds, Chronograph |
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Specifications
| Weight | 1 lbs |
|---|

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