Audemars Piguet Jules Audemars Grande Complication Yellow Gold — Silver Arabic Dial | Ref. 25866BA.OO.D002CR.02

Reference 25866BA sits at the very summit of Audemars Piguet's complication hierarchy — a grande complication in 18K yellow gold housing a perpetual calendar, minute repeater, and split-seconds chronograph within a 42 mm case. Fewer pieces demand more accumulated hours of hand assembly, and the domed yellow gold bezel with its classically proportioned silhouette signals that the wearer values invisible complexity over outward spectacle.

The automatic movement at the heart of 25866BA — calibre-family tracing to AP's in-house grande complication architecture — orchestrates the perpetual calendar through a sophisticated cam-and-lever system accounting for Gregorian month lengths and leap years until 2100 without manual correction. The minute repeater mechanism, actuated by a slide on the caseband, chimes hours, quarter-hours, and minutes in sequences of resonant yellow gold tones, its cathedral gongs hand-tuned to concert pitch. The 72-hour power reserve typical of this calibre family ensures robust daily reliability.

A silver dial with clean Arabic numeral chapter ring and sub-register architecture presents all calendar and chronograph information in an unhurried, classically legible format. The large square-scale alligator strap with tang buckle offers secure vintage-inspired fastening. Priced at seven figures, this Jules Audemars Grande Complication occupies a tier inhabited only by a handful of independent and manufacture watchmakers — a monument to what can be achieved when time, expertise, and precious materials are consumed without compromise.