The IWC Portuguese Jubilee 125th Anniversary Reference 5441 (specifically 5441-03 / 5441-04) is one of the most historically significant and highly collectible modern timepieces produced by International Watch Co. Schaffhausen. Released in 1993 to celebrate IWC's 125th anniversary, this 18k rose gold masterwork was strictly limited to 500 pieces worldwide, making it a legendary cornerstone for watch enthusiasts.

  This specific reference marked the modern revival of the long-dormant Portuguese family. Between the original Reference 325 launch in 1939 and this resurrection in 1993, fewer than 1,000 original Portuguese watches were ever produced. The 5441 was a remarkably faithful tribute, matching the oversized scale and aesthetic codes of the 1939 original icon.

  The soul of the watch lies in its IWC Caliber 9828 movement, viewable through the transparent case back. True to the 1939 original's concept—which used a pocket watch movement inside a wristwatch—the Caliber 9828 is an extensively hand-decorated pocket watch caliber. 

• Details: Manual-wind, operates at a classical 18,000 vph (2.5 Hz) with 19 jewels and a 54-hour power reserve.

• Finishing: Features a specialized anniversary engraving on the bridge, traditional gold chatons, tight perlage on the base plate, Geneva stripes, and an oversized black-polished swan's neck regulator.

• Feature SpecificationCase Material18k Rose Gold (Pink Gold)Case Dimensions42.0 mm diameter x 10.4 mm thicknessCrystalPeriod-accurate domed PlexiglassCase BackSapphire display window (snap-on back)Dial DesignMatte silver dial, applied rose gold Arabic numerals, leaf-shaped feuille handsSubdialOutboard small running seconds at 6 o'clockWater Resistance30 meters (3 ATM).