The IWC Big Pilot’s Watch Perpetual Calendar (ref. IW503608) brings one of the brand’s most complex complications into its boldest case design. Released in 2023, this stainless steel edition pairs technical mastery with a striking green dial – a contemporary hue rarely seen on perpetual calendars of this scale.

Housed in a 46.2mm steel case, the watch is powered by IWC’s in-house calibre 52615. This self-winding movement features a perpetual calendar with four-digit year display, moon phase, and day, date, and month indications – all synchronised via a single crown. With a 7-day power reserve and premium finishing visible through the caseback, it balances endurance with mechanical finesse. The rich green dial anchors these displays within the Big Pilot’s signature cockpit-inspired layout.

Combining the Big Pilot’s commanding wrist presence with one of IWC’s most lauded complications, the ref. IW503608 stands at the intersection of aviation utility and calendar precision – a confident statement for collectors of both.