Audemars Piguet Royal Oak 50th Anniversary White Gold — Tanzanite Gem-Set Blue Dial | Ref. 15514BC.TF.1284BC.01

One of the most covetable pieces to emerge from Audemars Piguet's landmark 2022 anniversary programme, Ref. 15514BC.TF.1284BC.01 sets tanzanite — the rarest of all blue gemstones, found only in a single square-mile deposit near Mount Kilimanjaro — in baguette-cut form across every surface of the 41 mm white gold Royal Oak case and bracelet. The result is a watch of profound chromatic intensity, the deep blue-violet of tanzanite shifting through indigo, violet, and electric blue as the light source changes — a phenomenon that has made this stone the most prized coloured gem of the late twentieth and early twenty-first centuries.

The blue dial carries luminous Royal Oak hands and is animated by Calibre 4302, AP's sophisticated in-house selfwinding calibre delivering approximately 60 hours of power reserve. The exhibition caseback, secured by a sapphire crystal, provides unobstructed access to the movement's beautifully finished architecture, while the screw-down crown and 20-metre water resistance complete a specification befitting a grand complications jubilee piece. The octagonal shape of the case — so carefully proportioned since 1972 — remains immediately recognisable even beneath its extraordinary jewelled surface.

The gem-set white gold integrated bracelet closes with an AP folding clasp, its tanzanite-covered links creating an unbroken visual flow from case to wrist. Issued as a 50th Anniversary limited edition, this reference is unlikely ever to be replicated in this exact specification — tanzanite of the required quality and in the necessary baguette-cut dimensions is extraordinarily scarce. For the serious jewellery-watch collector, this is an opportunity of unusual significance. Offered complete with box and papers.