The IWC Portugieser Annual Calendar marks a significant milestone in IWC’s iconic Portugieser collection.
Introduced at the 2015 SIHH, it was the first annual calendar model in this series, blending classic design with advanced mechanical innovation.
Its fan-shaped display of month, day, and weekday at 12 o’clock offers a clear and elegant view of the three essential calendar indicators.
Calibre 52850 Movement and 7-Day Power Reserve
This watch is powered by the advanced Calibre 52850, featuring double barrels and IWC’s signature Pellaton automatic winding system with ceramic bearings.
The movement delivers a remarkable 7-day power reserve, allowing collectors to wear the watch for a full week without winding.
This combination of efficiency, reliability, and technical sophistication makes it a standout among luxury automatic watches.
For full specifications, visit the official IWC website.
Design, Dial, and Layout
The IWC Portugieser Annual Calendar retains the series’ signature elegance.
The power reserve indicator at 3 o’clock, small seconds at 9 o’clock, and railway-track minute scale enhance both legibility and visual balance.
The 44.2mm stainless steel case provides a commanding wrist presence, while the 15.3mm thickness accommodates the long power reserve and annual calendar mechanism comfortably.

Case, Crystal, and Strap
The dial is silver-plated under a sapphire crystal front and case back, providing both elegance and durability.
The watch is fitted with an alligator leather strap and stainless steel clasp, completing the sophisticated look.
Collectors who appreciate classic design with practical complications will find the Portugieser Annual Calendar a perfect choice.
For enthusiasts exploring more IWC complications, the
IWC Portugieser Perpetual Calendar is another exemplary model that combines technical mastery with elegant design.
IWC Portugieser Annual Calendar Specifications
Case: Stainless steel
Diameter: 44.2mm
Thickness: 15.3mm
Crystal: Sapphire front and back
Dial: Silver-plated with fan-shaped calendar display
Movement: Calibre 52850
Jewels: 36
Oscillation: 28,800 vph
Power Reserve: 168 hours
Strap: Alligator leather strap
Buckle: Stainless steel clasp
Water Resistance: 30 meters
