The latest addition to Patek Philippe’s Aquanaut collection is the Aquanaut Travel Time. The Patek Philippe Aquanaut Travel Time Ref. 5164A features the Patek Philippe Caliber 324 S C FUS automatic movement which has two hour hands to display the time for two different timezones, a day and night indicator and an analog date window. The case is made of stainless steel whilst the strap is made of rubber.