Patek Philippe
Grand Complications Perpetual Calendar (Rose Gold, Ivory Dial)
Ref. 5327R-001
On request
Message on WhatsAppPatek's self-winding perpetual calendar has run through only three references since the mid-1980s: the 3940 of 1985, the 5140 that took over in 2006 with a thinner case, and the 5327 that replaced it in turn at Baselworld 2016, adding the rounded, scallop-lugged case and applied Breguet numerals seen here. Despite the Calatrava-style case, the reference sits in Patek's Grand Complications family. Calatrava is the separate, simpler time-only line.
This Patek Philippe Grand Complications Perpetual Calendar wears a 39mm rose gold case with a lacquered ivory dial and applied rose gold Breguet numerals. Calibre 240 Q inside, on a dark brown alligator leather strap with a rose gold fold-over clasp.
Fun fact: the 5327 replaced the 5140's baton hour markers with the applied Breguet numerals seen on this dial: the clearest way to tell the two references apart at a glance, since the case dimensions and movement carried over largely unchanged.