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Patek Philippe

Patek Philippe Aquanaut Luce Annual Calendar 5261R-001

The Patek Philippe Aquanaut Luce Annual Calendar (reference 5261R-001) is a 39.9 mm 18k rose gold watch with a blue dial. It runs on the automatic caliber 26-330 S QA LU with a 45-hour power reserve and is water resistant to 30 m. It was introduced in 2023 and is still in production.

Specifications

Case

Reference
5261R-001
Collection
Aquanaut
Case size
39.9 mm
Thickness
10.9 mm
Case material
18k rose gold
Case shape
Other
Crystal
Sapphire
Water resistance
30 m
Bracelet / strap
Composite strap

Dial and bezel

Dial
Blue
Bezel
Diamond-set

Movement

Movement
Automatic
Caliber
26-330 S QA LU (base 26-330)
Power reserve
45 hours
Frequency
28,800 vph
Functions
Annual calendar, Moon phase, Day-date

Production

Production
2023 – today (current)

How it compares within the Aquanaut family

Side by side with other references in the same collection, from the catalog.

ReferenceSizeMaterialDialCaliberYears
5261R-001 (This watch)39.9 mm18k rose goldBlue26-330 S QA LU2023–
5164G-00140.8 mm18k white goldBlue324 S C FUS2024–
5164R-00140.8 mm18k rose goldBrown324 S C FUS2016–
5168G-00142.2 mm18k white goldBlue324 S C2017–
5168G-01042.2 mm18k white goldKhaki green324 S C2019–
5968A-00142.2 mmStainless steelBlackCH 28-520 C2018–
5968G-00142.2 mm18k white goldBlueCH 28-520 C2021–
5968G-01042.2 mm18k white goldKhaki greenCH 28-520 C2021–
5968R42.2 mm18k rose goldBrownCH 28-520 C2023–

About the Aquanaut family

The Aquanaut was introduced in 1997 with ref. 5060A as a younger, more relaxed companion to the Nautilus. It shares the rounded octagonal case shape but pairs it with an embossed grid-pattern dial and a strap made of a tropical composite material that matches the dial.

Key references include the steel 5167A, the larger 42 mm 5168G in white gold, the Travel Time 5164 with two hour hands for home and local time, and the smaller Aquanaut Luce models aimed at women, some with gem-set bezels. Many automatic models use caliber 26-330 S C. Dealers look closely at the condition of the composite strap, whether the original strap and folding clasp are present, and at the Certificate of Origin, since steel references are tightly allocated by the brand.

Quick answers

What size is the Patek Philippe Aquanaut Luce Annual Calendar 5261R-001?
The Patek Philippe Aquanaut Luce Annual Calendar 5261R-001 has a 39.9 mm case, 10.9 mm thick.
What movement does the Patek Philippe Aquanaut Luce Annual Calendar 5261R-001 use?
It uses the automatic caliber 26-330 S QA LU, with a 45-hour power reserve.
How water resistant is the Patek Philippe Aquanaut Luce Annual Calendar 5261R-001?
It is water resistant to 30 metres.
Is the Patek Philippe Aquanaut Luce Annual Calendar 5261R-001 still in production?
Yes, it is a current reference.
When did the Patek Philippe Aquanaut Luce Annual Calendar 5261R-001 come out?
It was introduced in 2023.
What is the Patek Philippe Aquanaut Luce Annual Calendar 5261R-001 made of?
The case is 18k rose gold. Bracelet or strap: Composite strap.

Catalog facts checked September 2026.