Entrepreneur Anant Ambani spotted wearing a Patek Philippe

Anant Ambani, the youngest son of Mukesh Ambani and a fixture on the global ultra-high-net-worth circuit, was recently spotted wearing a timepiece that would stop even the most seasoned Patek Philippe collector in their tracks: the Nautilus Travel Time Chronograph ref. 5990/1422G-001, a white gold gem-set variant so discreetly introduced that the broader market barely registered its existence.

Patek Philippe unveiled the ref. 5990/1422G-001 in 2021 as part of a tightly controlled trio of high-jewellery Nautilus releases, the other two featuring ruby and blue sapphire baguette stones respectively. The 40.5mm white gold case houses Calibre CH 28-520 HU, a lateral-clutch column-wheel chronograph movement with a flyback function and the brand's proprietary travel time complication, allowing the wearer to track a second time zone with a dedicated day/night indicator. The gradient grey dial — a hallmark of the gem-set Nautilus aesthetic — carries emerald baguette hour markers that visually connect to the stone-set bezel and center bracelet links, creating a seamless jewellery-meets-sport-watch composition that is rare even by Patek's own standards.

The 5990 reference, first introduced in 2006, has long occupied a collector sweet spot: it combines the Nautilus's iconic Gerald Genta silhouette with genuine horological complexity, offering a flyback chronograph and travel time in a sports-case format that few manufactures have attempted with this level of movement finishing. The gem-set 1422G variant elevates that already desirable platform into a category where acquisition depends entirely on your relationship with Patek Philippe's most senior client managers. These pieces are not catalogued in the conventional sense and are not presented at boutiques — they are offered directly and selectively.

Anant Ambani's affinity for extraordinary watches is well documented. The Reliance heir has been photographed with a range of ultra-complicated and high-jewellery pieces, and his appearance with the 5990/1422G-001 underscores both his access and his taste for watches that sit at the absolute apex of what Geneva produces.

With an official retail price in the region of $1,500,000 and no meaningful grey-market liquidity — the few examples that have surfaced at auction or through private treaty have commanded significant premiums — the ref. 5990/1422G-001 exists outside normal market dynamics entirely. It is, in practical terms, priceless unless a seller decides otherwise.