====== Patek Philippe Aquanaut Travel Time 5164 ======

{{wst>image_cr|Patek Philippe|Aquanaut Travel Time 5164}}

**Ref. 5164** is the current [[Patek Philippe Aquanaut|Aquanaut]] [[dual timezone|Travel Time]] [[sports watch]] from [[Patek Philippe]] and has been available since [[2011]].

===== History =====
Patek Philipe launched the Aquanaut range in [[1997]] as a lower-priced alternative to the existing [[Patek Philippe Nautilus|Nautilus]] range. A true sports watch, the Aquanaut features a rugged three-part case and screw-down crown for 120 meter water resistance, the most of any watch with a sapphire caseback at that time. The original [[Patek Philippe Aquanaut 5060|Ref. 5060]]/[[Patek Philippe Aquanaut 5066|5066]] Aquanaut was joined by a [[Patek Philippe Aquanaut 5065|"Jumbo" Ref. 5065]], with a 38 mm case, soon after, and both were replaced by the updated [[Patek Philippe Aquanaut 5167|Ref. 5167]] in [[2007]]. But the Aquanaut had always been a simple watch, with a date window being the only [[complication]].

In [[2011]], Patek Philippe introduced the first [[complicated]] Aquanaut model, this **Ref. 5164 "Travel Time"**. Like other [[dual timezone]] watches, it features a fourth "skeleton" hour hand that always shows "home" time while the main hour hand adjusts in 1-hour increments to show "local" time. This is done using [[button]]s on the left hand side of the case, the bottom to more the hour forward and the top to move it back. Two apertures in the dial just below the centerline serve as [[day/night indicators]] for both home and local time. The date follows the local hand and is indicated [[date by pointer|with a pointer]] in a subdial at 6 00 rather than the window at 3 00 common to other Aquanaut models.

The case measures 40.8 mm, a little larger than the more-common [[Patek Philippe Aquanaut 5167|Ref. 5167]]. A sapphire [[display caseback]] shows the same basic movement, [[PP 324|Cal. 324]], as that model but this complicated variant is known as [[PP 324|Cal. 324 S C F US]]. The Aquanaut Travel Time is not available with a steel or gold [[bracelet]] as other Aquanaut models are.

A special version of the Aquanaut Travel Time was produced in limited numbers in [[2017]] as part of the [[Patek Philippe Advanced Research]] effort. [[Patek Philippe Aquanaut Travel Time 5650|Ref. 5650]] featured a simplified mechanism for the second time zone which used the crown rather than buttons. Another unusual aspect was an [[open heart]] dial. Just 500 were produced.


<WRAP ud ud_mod>

**References:**
  * 5164R [[Rose gold]]
  * 5164A [[Stainless steel]]

**Movement: **
  * [[Self-winding]] [[manufacture]] movement [[PP 324|Cal. 324 S C F US]], 28,800 A/h
  * [[Geneva Seal]]
  * 29 [[jewels]]
  * Power reserve 45 h

**Case:**
  * [[White gold]]
  * Ø 40.8 mm, H 10.2 mm
  * Fixed [[bezel]] [[satin-finished]]
  * [[Sapphire crystal]], [[sapphire crystal]] caseback
  * [[Screw-in crown]]
  * [[Waterproof]] to 120 m

**Functions:**
  * Hours, minutes, [[central seconds]]
  * Date by pointer at 6 00
  * Second time zone hand
  * Day/night indicators

**Dial:**
  * Black

**Bracelet: **
  * Black "tropical" strap made of durable and water resistant composite material, with [[folding clasp]]

**Production: **
  * [[2011]]-Present
</WRAP>

{{tag>Watch_models Dual_timezone_watches Patek_Philippe_models Patek_Philippe_Aquanaut_models Patek_Philippe_references}}