Patek Philippe released the Aquanaut in 1997 to great fanfare. Featuring an octagonal case shape inspired by the insanely popular Nautilus, the Aquanaut was destined for success. Today, the series is widely coveted by luxury watch enthusiasts who appreciate its simplistic yet functional design and timeless styling. The Patek 5164A for sale here is a very desirable stainless steel edition of the Aquanaut series, complete with a comfortable black “tropical” strap to match the embossed design on the dial and a case measuring just over 40mm in diameter and 10.5mm thick. This Patek will slip effortlessly under the cuff of a tight dress sleeve and also looks exceptional with casual attire. Powering the Patek 5164A-001 is the cal. 324 S C FUS movement featuring dual time capabilities with local and home time AM/PM indicators. The beauty of this movement is that the additional time zone can be tucked behind the other hour hand when not in use to keep a clean aesthetic on the dial. Shop Patek Philippe Aquanaut Collection