Myths and legends have been woven around the full moon since time immemorial. It is undisputed that the moon's gravitational pull regulates the tides, ebb and flow, and thus has an influence on the earth and life. On the moon phase display of the Portuguese Perpetual Calendar, the moon measures only 5 millimetres. Nevertheless, the representation of its course on the miniature stage deviates from the actual moon's orbit by only one day in 577.5 years. The perpetual calendar with double moon display shows the different lunar cycles in mirror image for the northern and southern hemispheres. In the anniversary year of the Portuguese family, both watches will receive a technical and visual update. For the first time, the double moon model adorns the typical Portuguese railway minute scale, while the moon phase display is completely staged by the watch designers as a star-studded night sky, so that moon and stars appear to float in endless space. Both models feature movements from the new IWC Calibre 52000 family with solid red-gold oscillating weight and blued screws. The watches feature ergonomically optimized strap lugs, a curved front glass and fine Santoni straps. The modern and elegant time machines also leave almost nothing to be desired in other respects: perpetual calendar, display of the complete year, 7-day automatic movement with Pellaton winding and power reserve display.