Patek Philippe Aquanaut lug width

Watch line32 references

Lug widths across the line

The Patek Philippe Aquanaut takes a 19 mm strap: all 3 references with a known width use 19 mm.

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32 Patek Philippe Aquanaut references

FAQ

What lug width does the Patek Philippe Aquanaut use?

The Patek Philippe Aquanaut takes a 19 mm strap: all 3 references with a known width use 19 mm.

Can I fit a standard strap to an Aquanaut?

The modern Aquanaut is built around an integrated composite strap whose contour is matched to the curve of the case, so it is designed as a case-specific strap rather than a standard straight-end band.

Is the Aquanaut strap rubber?

Patek calls it a composite material, branded 'Tropical', and describes it as resistant to wear, salt water and UV radiation.

Is there an Aquanaut on a steel bracelet?

Yes. The 5065 was offered with a brick-pattern steel bracelet, and the 40mm Ref. 5167/1A comes on a steel Patek Philippe bracelet with a deployant clasp.

Which Aquanaut comes with two straps?

The steel chronograph Ref. 5968A is fitted with a black composite strap and delivered with an orange composite strap as an extra.

What clasp do current Aquanauts use?

Since the 2018 chronograph, Patek has used a patented fold-over clasp secured by four independent catches, which took two years to develop.

The story of the Patek Philippe Aquanaut

In 1997 Patek Philippe fitted its new steel Aquanaut with a composite strap instead of a steel bracelet, one built to resist wear, salt water and UV. The Aquanaut was aimed at a younger, active buyer, and it soon ranked among the brand's best-selling men's watches.

42.2 mmDiameter of the 2017 white gold "Jumbo" Ref. 5168G
500Pieces of the Advanced Research Ref. 5650G
37 to 12Parts in the 5650G time zone mechanism versus the classic design
4Independent catches on the fold-over clasp introduced in 2018

Chapters

  1. 2021 to 2026
    Luce grows, colours multiply

    In 2021 the Luce grew to 38.8mm with a new integrated composite strap, and the chronograph arrived in white gold. The 2023 Ref. 5261R became the first annual calendar in the collection. In 2026 a 250-piece blue Ref. 5167A-014 marked Patek's Watch Art Grand Exhibition in Milan.

  2. 2011 to 2018
    Complications join the line

    The Travel Time Ref. 5164 brought a second time zone in 2011. For the twentieth anniversary in 2017 came the 42.2mm white gold Ref. 5168G, the first men's Aquanaut in white gold, and the 500-piece Advanced Research Ref. 5650G. The first Aquanaut chronograph, the Ref. 5968A, followed in 2018.

  3. 2007
    A tenth-birthday redesign

    For the tenth anniversary Patek replaced the three earlier sizes with the 40mm Ref. 5167 and the 38mm Ref. 5165. The dial pattern was redrawn, the strap was reshaped to follow the case curve, and a new double-security fold-over clasp was developed.

  4. 2004 to 2005
    Aquanaut Luce for women

    The Aquanaut Luce, named after the Italian word for light, added a diamond-set bezel and coloured dials with matching straps. It appeared first in Italy and Spain in 2004, then worldwide in 2005.

  5. 1998 to 2006
    Three sizes and a bracelet

    The line soon came in three sizes, with the Ref. 5065 produced from 1998 until 2006. Its embossed dial pattern was carried into both the rubber strap and a brick-pattern steel bracelet.

  6. 1997
    A Nautilus for a younger crowd

    Then president Philippe Stern wanted a sports watch for young, physically active buyers, and the two-part Nautilus case was too costly for that. Patek chose a simpler three-part case that still reached 120 m, and swapped the hard-to-make steel bracelet for a composite strap. The Ref. 5060A was presented at the 1997 Basel show.

Worn by

Paul McCartneyMusic

McCartney wore an Aquanaut 5165A to his wedding and wore the same model on Carpool Karaoke.

James CordenScreen2022

The Late Late Show host added an Aquanaut to his collection and wore it on air in a sketch as Rihanna's assistant.

DrakeMusic2019

Drake showed off the Aquanaut chronograph on its orange strap, apparently obtained through his longtime jeweler.

Shawn MendesMusic2023

Spotted in Ibiza wearing a white gold Aquanaut 5168G on a khaki green strap that matched his swim trunks.

The WeekndMusic2022

He wore the original 1997 reference, the Aquanaut 5060A, with a suit to a Los Angeles gala.

Kris JennerBusiness2022

Eight days after Patek announced the gem-set rainbow Aquanaut, it was on Jenner's wrist.

Moments

Patek called the composite strap 'Tropical' and described it as resistant to wear, salt water and UV radiation. Christie's notes the Aquanaut was the first Patek fitted with such a strap.

An unworn Aquanaut Travel Time Ref. 5650G Advanced Research sold at Christie's Hong Kong on 24 May 2022 for HKD 5,292,000, against an estimate of HKD 2,400,000 to 4,800,000.

The 2018 chronograph's spare orange strap drew mixed reactions at launch; GQ reported orange-strap examples trading near $100,000 on the secondary market a year later.

For its Watch Art Grand Exhibition in Milan in October 2026, Patek made a 250-piece steel Aquanaut 5167A-014 with a blue gradient dial and red accents, the only steel piece among seven limited editions.

Generations and strap changes

  1. 2023
    Ref. 5261R Luce Annual Calendar

    The first annual calendar in the Aquanaut collection, in a 39.9mm rose gold case with a blue-gray dial and strap.

  2. 2018
    Ref. 5968A Chronograph

    The first Aquanaut chronograph, a 42.2mm steel flyback with orange chronograph displays and calibre CH 28-520 C.

    Delivered with two composite straps, black fitted and orange as a spare, on a new fold-over clasp with four catches.

  3. 2017
    Ref. 5168G

    The 20th-anniversary "Jumbo" in white gold, 42.2mm across, the largest Aquanaut at launch, with a night blue gradient dial.

    Night blue composite strap with a white gold fold-over clasp; Patek's technical data lists 22 mm between the lugs, but the strap is shaped to the case.

  4. 2017
    Ref. 5650G Advanced Research

    A 500-piece Travel Time showing a 'compliant' second time zone mechanism made of flexible steel blades, cutting parts from 37 to 12.

  5. 2011
    Ref. 5164A Travel Time

    A 40.8mm steel Aquanaut with a second time zone set by two pushers on the left flank, powered by calibre 324 S C FUS.

  6. 2007
    Ref. 5167A

    The tenth-anniversary model: a 40mm case, a redrawn dial with the date replacing the 3 o'clock numeral, and a display caseback.

    The composite strap was reshaped to meet the case curve and secured by a new double-security fold-over clasp; a steel bracelet version, Ref. 5167/1A, followed the same design.

  7. 1998
    Ref. 5065A "Jumbo"

    The model that anchored the line until 2006, with thicker hands and indexes and more luminous material than the Nautilus.

    Offered on the rubber strap or on a steel bracelet carrying the same brick pattern.

  8. 1997
    Ref. 5060A

    The first Aquanaut: a steel case with a rounded octagonal bezel echoing the Nautilus, and a black dial whose relief pattern matched the strap.

    Fitted with the 'Tropical' composite strap, chosen over a steel bracelet that was very hard to produce and finish.

Help

What is lug width?

The gap between the two lugs that hold the strap, in millimetres. A new strap must match it exactly: 20 mm lugs take a 20 mm strap.

Measure it in 30 seconds

  1. Take the strap off, or look at the back of it: many straps print their width.
  2. Measure the inside gap between the lugs with a caliper or a millimetre ruler.
  3. Round to the nearest whole millimetre. Most watches use 18, 20 or 22 mm.

Strap, quick release or system?

Most watches use spring bars, so any strap of the right width fits. Many smartwatches use their own band system instead, such as Apple Watch bands or Garmin QuickFit.