Before the launch of Kurt Klaus’ Da Vinci Perpetual Calendar, the moon phase watch had already made its first grand appearance in a wristwatch in the early 1980s: as a feature in the Portofino Reference 5251. With a case height of just 8.5 mm, it was the only wristwatch to offer a moon phase display as well as a pocket watch movement – the IWC-manufactured 9521-calibre, which was visible through a sapphire glass back. This "pocket watch for the wrist", with its outstanding horological features, was regarded as a successful symbiosis of excellent engineering and a bold yet unpretentious design.
Today, the moon phase is featured in a variety of timepieces for both men and women. The Da Vinci Automatic Moon Phase 36 (Ref. 4930) is one of two dedicated ladies’ models introduced in the 2017 Da Vinci collection, while the Da Vinci Perpetual Calendar Chronograph (Ref. 3921) resonates particularly well among watch complication aficionados. A moon phase star is the Portofino Automatic Moon Phase 37 (Ref. 4590), which primarily speaks to female clients. Combining poetry and aesthetics on the wrist, it shows the daily changing shape of the moon against a glittering, star-studded sky. The latest addition of a moon phase watch to IWC’s portfolio is the Portofino Hand-Wound Moon Phase (Ref. 5164), which pays homage to the first Portofino from 1984.
Learn more about IWC’s moon phase watches made in Schaffhausen and discover the full collection