Fresh and clearly aimed at a younger, more adventurous collector – the Aquanaut was the first model from the Geneva maison to come fitted with a tropical rubber strap – the Aquanaut was sports-luxe before it became a retail buzzword. Though the original reference was a modest 35.6-mm. Patek introduced the Aquanaut in smaller and bigger sizes in the years to come including the 38 mm ‘Jumbo’ case Ref. 5065 in 1998.

Reference 5167
The reference 5167 debuted at Baselworld in 2007 to mark the 10th anniversary of the model and featured an updated Cal. 324 SC calibre and was also upsized to 40 mm. case (from 38mm). The 5167A was presented with a contoured tropical leather strap and a revised dial design was cleaner and was the first Aquanaut to breach the 40-mm case size.