Shown: reference 5712/1R-001 · Photo: Patek Philippe
Patek Philippe

Moon Phases Reference 5712/1R-001

Overview

A 40 mm rose gold case defines the Patek Philippe Moon Phases. The movement is the self-winding Patek Philippe calibre 240 PS IRM C LU, with a power reserve of 38 to 48 hours. Water resistance is 30 metres. One reference is listed, 5712/1R-001.

Patek Philippe launched the Nautilus in 1976 as a sports watch in steel. About the Patek Philippe Nautilus

Case diameter
40 mm
8.52 mm thick
Movement
Calibre 240 PS IRM C LU
Moonphase, Power reserve indicator
Water resistance
30 m
Power reserve
38 to 48 h

Specifications

Specifications from Patek Philippe. Last checked . Sources

Case

Diameter
40 mm
Thickness
8.52 mm
Material
Rose gold
Crystal
Sapphire
Case back
Open
Water resistance
30 m

Dial

Colour
Sunburst brown with black-gradient rim, horizontally embossed, rose gold applied baton-style hour markers with white luminescent coating. Rose gold rounded baton-style hands with white luminescent coating.

Movement

Calibre
Patek Philippe 240 PS IRM C LU
Type
Automatic
Functions
Moonphase, Power reserve indicator, Date
Power reserve
38 to 48 h
Jewels
29
Frequency
21,600 vph (3 Hz)
Certification
Patek philippe seal

Bracelet or strap

Bracelet or strap
Rose gold
Clasp
Rose gold patented fold-over clasp

Not yet recorded: lug width, lug-to-lug, shape, indexes, hands, years.

Sources

  • Patek Philippe: case, water resistance, dial, movement, bracelet. View sources

Missing values are shown as not yet recorded, never estimated. How we source our data

MovementPatek Philippe calibre 240 PS IRM C LUSpecifications and every watch that uses it

Moon Phases questions

What size is the Patek Philippe Moon Phases?

The Patek Philippe Moon Phases has a 40 mm case.

What movement does the Patek Philippe Moon Phases use?

It uses the Patek Philippe calibre 240 PS IRM C LU.

What is the Patek Philippe Moon Phases case made of?

The case is rose gold.

Is the Patek Philippe Moon Phases water resistant?

It is rated to 30 m.

About the Patek Philippe Nautilus

Patek Philippe launched the Nautilus in 1976 as a sports watch in steel. It was designed by Gérald Genta, and its case is inspired by a ship's porthole, with a rounded octagonal bezel and a horizontally embossed dial. The original reference was the steel 3700/1A, nicknamed the Jumbo. The collection now includes time-only models alongside complications such as Travel Time, chronograph, moon phase, annual and perpetual calendar, in steel, rose gold and white gold. Patek Philippe marks the Nautilus's 50th anniversary in 2026.

Sources: Nautilus collection (Patek Philippe), The Complete Guide to the Patek Philippe Nautilus (Sotheby's), Fratello's Top 5 Patek Philippe Nautilus References (Fratello)