IWC Portugieser Manual-Winding Eight-Day Power Reserve 75th Anniversary is a commemorative timepiece created to celebrate the origins of the legendary Portugieser collection. Inspired directly by the original 1930s Portugieser, this model blends classic marine chronometer design with modern haute horlogerie craftsmanship, making it one of the most historically significant long power reserve watches ever produced by IWC.
Unlike many modern reinterpretations, the IWC Portugieser Manual-Winding Eight-Day Power Reserve 75th Anniversary remains extremely faithful to its heritage DNA. From its clean dial layout to its oversized case proportions, everything reflects the purity and functional elegance of early navigational pocket chronometers.
IWC Portugieser Manual-Winding 8-Day Design and Dial
The IWC Portugieser Manual-Winding 8-Day Power Reserve 75th Anniversary features all classic Portugieser design codes, including large Arabic numerals, refined leaf-shaped hands, a traditional railway minute track, and a beautifully balanced small seconds subdial at 6 o’clock.
A rare design element is the circular round date aperture positioned above the small seconds. This circular date window aligns visually with the subdial, creating a unique coaxial symmetry rarely found in contemporary dress watches. The vintage-style typography and subtle dial proportions give the watch a timeless, highly legible appearance.
IWC Caliber 59215 Manual-Winding & 8-Day Power Reserve
Powering the IWC Portugieser Manual-Winding Eight-Day Power Reserve 75th Anniversary is the prestigious IWC Caliber 59215 manual-winding movement. This movement is equipped with a dual-barrel construction that delivers a true and stable 8-day power reserve when fully wound.
Operating at 28,800 vibrations per hour, the movement ensures high precision across its entire power reserve duration. Through the sapphire case back, collectors can admire the movement finishing, decorated with fine Geneva stripes, beveled edges, and carefully polished components.
Thanks to its robust architecture and reliable torque curve, the IWC Portugieser Manual-Winding Eight-Day Power Reserve 75th Anniversary is not only visually stunning but also a highly practical mechanical dress watch suitable for regular wear.
Case Construction & Limited Edition Production
The IWC Portugieser Manual-Winding Eight-Day Power Reserve 75th Anniversary is available in two limited versions:
- Rose gold case – Limited to 175 pieces worldwide
- Stainless steel case – Limited to 750 pieces worldwide
Both versions feature a classic 43mm case diameter inspired by the oversized dimensions of the original 1939 Portugieser. The historic handwritten “International Watch Co.” logo at 12 o’clock reinforces the vintage character and commemorative identity of this anniversary piece.
A scratch-resistant sapphire crystal covers the dial, while a transparent sapphire case back allows a view of the mechanical heart. Water resistance is rated at 30 meters.
Wearing Experience and Collector Value
The IWC Portugieser Manual-Winding Eight-Day Power Reserve 75th Anniversary comes fitted with a premium hand-stitched alligator leather strap and a matching pin buckle, crafted in either stainless steel or rose gold.
Despite its 43mm size, the slim case profile and curved lugs ensure excellent wrist comfort. It wears comfortably as both a formal dress watch and a sophisticated daily timepiece.
Collectors highly value this reference due to its limited production, historically faithful design, and one of IWC’s finest long power reserve movements. It represents a key collectible milestone within the evolution of the Portugieser family.
For more IWC references, explore the
IWC Portugieser Annual Calendar,
and visit the
IWC Official Website.
IWC Portugieser Manual-Winding Eight-Day Power Reserve 75th Anniversary – Specifications
Case: Rose gold / Stainless steel
Diameter: 43mm
Thickness: 12mm
Crystal: Sapphire front and back
Movement: IWC Caliber 59215 manual-winding
Jewels: 30
Frequency: 28,800 vph
Power Reserve: 8 days
Strap: Alligator leather
Buckle: Rose gold / Stainless steel pin buckle
Water Resistance: 30 meters
