Entrepreneur Anant Ambani spotted wearing a Patek Philippe

Anant Ambani, the youngest son of Reliance Industries chairman Mukesh Ambani, has been spotted wearing what many serious collectors consider the single most complicated wristwatch in regular production: the Patek Philippe Grand Complications reference 6300G-010, an 18-carat white gold behemoth retailing in the vicinity of $9 million and limited to a global edition of precisely seven pieces.

The Patek Philippe 6300G-010 traces its DNA to the Calibre 89 pocket watch unveiled in 1989 to celebrate the manufacture's 150th anniversary — itself long regarded as the most complicated portable timepiece ever made. The 6300G is its spiritual successor in wristwatch form, housing the hand-wound Cal. GS 36-750 QIS FUS IRM movement, which comprises 1,366 components across 20 complications. Those complications include a minute repeater, perpetual calendar, tourbillon, equation of time, and a sky chart, but the genuine horological headlines belong to two patented world firsts: an acoustic alarm that strikes the programmed time on demand, and a harmonious striking mechanism that prevents two chiming functions from sounding simultaneously. The 48mm case in 18-carat white gold is entirely hand-engraved — a process requiring hundreds of hours from a single craftsman — finished with a blue opaline dial that frames the complexity beneath with almost theatrical restraint.

For collectors, the reference 6300G-010 occupies a category largely unto itself. Seven examples is not a marketing figure; it reflects the genuine manufacturing constraint of producing a movement of this density to Patek's tolerances. Each piece is effectively bespoke in terms of the time invested, and provenance is everything — the seven owners are almost certainly known to the manufacture.

Anant Ambani's appearance with the 6300G-010 is consistent with a collecting approach that prioritises technical significance over visibility. His family's relationship with ultra-high horology is well documented, and this sighting adds a meaningful data point: the 6300G-010 is not a watch purchased for a public occasion; it is worn by someone who understands precisely what is on his wrist.

With no secondary market comparables to speak of — seven pieces simply do not circulate — grey market pricing is theoretical at best, though auction estimates for comparable grand complications from Geneva have repeatedly exceeded the $9 million retail figure, suggesting the 6300G-010 would command a significant premium if one ever surfaced publicly.