A limited edition of just 250 watches, the Portugieser Perpetual Calendar Edition “150 Years” (Ref. IW503405) comes in a 18-carat red gold case, measuring 44,2 mm in diameter and water-resistant to 300 meters. On its white lacquered dial run blued hands.
The IWC-manufactured 52615 calibre with Pellaton winding generates a power reserve of 7 days with a solid gold rotor and two barrels. It is visible through the sapphire-glass caseback.
The perpetual calendar automatically recognises the differing lengths of the months as well as leap years and will require no adjustment until 2100. The double moon display depicts the moon as a mirror image that is correct for both the northern and southern hemispheres and that will only deviate by 1 day from the actual cycle of the earth’s satellite after 577.5 years.
