Pilot Nico Rosberg spotted wearing a IWC

Nico Rosberg was photographed in Abu Dhabi wearing the IWC Portugieser Perpetual Calendar in 18kt white gold with a grey dial and black leather strap — reference IW502307 — on the very weekend he secured the 2016 Formula 1 World Drivers' Championship. The choice of watch for such a landmark moment is notable: this is not a flashy celebration piece, but a tool of considered, long-horizon thinking rendered in precious metal.

The IWC Portugieser Perpetual Calendar IW502307 is built around IWC's Calibre 51614, a self-winding movement with a 68-hour power reserve and a perpetual calendar mechanism that requires no manual date correction until the year 2499. The display is arranged with classical restraint: separate subdials for day, date, month, and moon phase at 6 o'clock, with a four-digit year display — a feature IWC introduced to the Portugieser family and one that meaningfully distinguishes it from peers that omit the year entirely. The 42.3mm white gold case provides a clean, cool frame for the slate grey dial, which reads with far more depth in person than photographs suggest.

The Portugieser line traces its roots to 1939, when two Portuguese merchants commissioned IWC to fit a marine-grade pocket-watch movement into a wristwatch case. The oversized case and clean dial architecture that resulted became a template the brand has refined for eight decades. The perpetual calendar complication entered the Portugieser family in earnest during the late 1990s and has since become one of IWC's most associated references among serious collectors — respected for mechanical substance over decorative excess.

Rosberg's relationship with precision and long-term planning is well documented. His 2016 championship was methodical rather than dramatic — consistent points accumulation over a full season — and a perpetual calendar, a complication defined by its ability to plan centuries ahead, is an unusually apt choice for the occasion.

The IWC Portugieser Perpetual Calendar IW502307 in 18kt white gold carried a UK list price of approximately £31,000 at the time of the sighting, translating to roughly $38,000–$40,000 USD at prevailing exchange rates. On the secondary market, white gold examples in strong condition have traded in a similar range, with collector demand remaining steady for this reference among fans of classical grand complications.