Deployant

Patek Philippe Aquanaut ref 5164A (2013). The collection was released in the late 1990s featuring a design heavily inspired by its cousin the Nautilus but with a slightly more "young" and approachable design set.  It features a similar case shape as the Nautilus including an octagonal bezel but with a "Tropical" rubber strap and a square motif on the dial. Ref. 5164A is a travel time model with two pushers on the left side of the case - the top pusher advances the hour hand while the bottom pusher moves it back allowing the wearer to sync with local time effortlessly.  When the hour hand moves it reveals a skeletonized hour hand underneath to hold the place of home time.  It's a simple and fascinating complication that makes the already desirable Aquanaut even more collection-worthy.

Patek Philippe Complications ref  5110G-001 features one of the brand's most intriguing complications cased in lustrous white gold.  Powered by the caliber 240 HU the World Time features two centrally-mounted hands surrounded by a 24-scale to indicate each of the world's 24 time zones (at the time of its production in the early 2000s) conveniently printed around the dial's perimeter.  Sun and Moon indicators on either side of the 24-hour scale distinguish between AM and PM hours. Furthermore the wearer can adjust the 24-hour scale to set their reference time by pressing the sleek pusher at 10 o'clock.  In true Patek fashion the watch is a masterpiece through and through.  The dial features a radiant guilloche pattern and is decorated with elegant gold hands and delicate white gold applied indices.