The IWC Portugieser Yacht Club Moon & Tide (ref. IW344002) introduces a new complication to the brand’s nautical line, combining a dual moonphase with precise tide indication in a stainless-steel execution. Released in 2024, the reference marks the first use of a silicon balance spring in IWC’s production, anchoring technical innovation within the familiar elegance of the Portugieser family.

Housed in a 44mm stainless-steel case and matched to a full steel bracelet, the watch features a black dial punctuated by subdials for double moonphase and tide state tracking. Powering the piece is IWC’s calibre 82835 – an automatic movement with Pellaton winding, a 60-hour power reserve, and a notably antimagnetic silicon balance spring. The display of both lunar and tidal cycles adds functional depth tailored to maritime application, while the screw-down crown supports water-resistance to 60m.

With its distinctive combination of tide indication, lunar precision, and cutting-edge regulation technology, the IW344002 positions itself as a technically advanced yet visually restrained addition to the Portugieser line, suited equally to collectors and coastal hands-on wear.