Entrepreneur Adam Mosseri spotted wearing a Patek Philippe

Adam Mosseri, the head of Instagram and one of Silicon Valley's most visible executives, was recently spotted wearing a Patek Philippe Aquanaut reference 5065J in 18K yellow gold — a discontinued model that quietly commands serious collector attention in today's vintage market.

Patek Philippe introduced the Aquanaut in 1997 as a sportier, more accessible alternative to the Nautilus, designed by Thierry Stern with a rounded octagonal bezel and the now-iconic embossed 'Tropicale' dial and matching rubber strap. The reference 5065 was the first full-production Aquanaut, offered in stainless steel (5065A) and 18K yellow gold (5065J). The yellow gold variant measures 38mm — modest by modern standards — and runs on the automatic Caliber 23-250 C, a 27-jewel movement oscillating at 21,600 vph with a 45-hour power reserve. Production of the 5065J ran from 1997 until 2006, when Patek retired it in favor of the current 5167 family.

The 5065J occupies a particular sweet spot in collector circles. Yellow gold sports watches were deeply unfashionable for much of the early 2000s, which means production numbers stayed modest and surviving examples in excellent condition are genuinely scarce. As the broader market reassessed yellow gold sports references — driven partly by the appreciation of gold Nautilus and Royal Oak variants — the 5065J followed suit. It carries the added weight of being a first-generation Aquanaut, historically significant within the reference's own lineage.

Mosseri's taste in watches has drawn attention before, and this sighting reinforces a collector sensibility rather than a trophy-watch approach. The 5065J is not the obvious pick — it demands knowledge to appreciate fully, which is precisely why it resonates with a certain kind of informed buyer. For the head of a platform that shapes visual culture, the choice feels considered.

On the current grey market, the Patek Philippe Aquanaut 5065J in yellow gold trades in the region of $95,000, reflecting sustained demand for discontinued gold Aquanaut references and the ongoing scarcity of clean, box-and-papers examples. Official retail pricing is no longer applicable given the model's discontinuation in 2006.