Patek Philippe 5146R-001 is a traditional annual calendar reference housed in a rose gold case, featuring a dial layout that combines multiple indications within a structured and legible format. The display includes day and month apertures, a date subdial, a power reserve indicator, and a moon phase complication. This arrangement allows for a comprehensive reading of time and calendar information without visual congestion. The watch is powered by the Caliber 324 S IRM QA LU, a self-winding movement designed to support both calendar functionality and energy reserve tracking.

The power reserve indicator provides real-time insight into the movement’s stored energy, enhancing usability for the wearer. The annual calendar system automatically adjusts for varying month lengths, reducing the need for manual intervention. The movement operates at a stable frequency and incorporates refined finishing techniques visible through the sapphire case back. With its combination of calendar intelligence and additional functional indicators, the 5146R-001 offers a layered approach to mechanical timekeeping.

Patek Philippe Annual Calendar Ref. 5146R-001

Model: Annual Calendar with Moon Phases and Power-Reserve Indicator
Reference: 5146R-001
Collection: Complications
Production: Introduced in 2005; subsequently discontinued
Case Material: 18K rose gold
Case Diameter: 39 mm
Case Thickness: 11.23 mm
Crystal: Sapphire crystal
Case Back: Sapphire-crystal display back
Water Resistance: 30 m

Dial: Cream-colored dial with rose-gold hands and applied markers. The annual calendar displays the day and month by subsidiary hands, with the date through an aperture at 6 o’clock. Moon phases are displayed at 6 o’clock, while the power-reserve indication is positioned opposite the moon-phase display. The dial incorporates a minute track around the perimeter.

Movement: Patek Philippe Calibre 324 S IRM QA LU
Movement Type: Self-winding mechanical
Movement Diameter: 30 mm
Movement Thickness: approximately 5.22–5.32 mm depending on the reference documentation
Number of Components: 355
Number of Jewels: 36
Power Reserve: up to 45 hours
Balance: Gyromax®
Frequency: 28,800 semi-oscillations/hour (4 Hz)
Quality Seal: Patek Philippe Seal

Functions: Annual calendar, day, date, month, moon phases, power-reserve indication, hours, minutes and seconds. The annual calendar automatically accounts for 30- and 31-day months and requires correction only once annually, at the end of February.

Strap: Alligator leather
Clasp: 18K rose-gold folding clasp

Alternative References & Configurations

The 5146 family is substantially broader than the single 5146R-001 configuration. Documented references include:

* 5146G-001 — 18K white gold; cream dial; Calibre 324 S IRM QA LU.
* 5146G-010 — 18K white gold; gray dial; Calibre 324 S IRM QA LU.
* 5146R-001 — 18K rose gold; cream dial; Calibre 324 S IRM QA LU. Primary configuration above.
* 5146P-001 — platinum; gray dial; Calibre 324 S IRM QA LU.
* 5146J-001 — 18K yellow gold; cream dial; Calibre 324 S IRM QA LU.
* 5146J-010 — 18K yellow gold; gray dial; Calibre 324 S IRM QA LU.
* 5146/1G-001 — 18K white gold with bracelet; cream configuration.
* 5146/1G-010 — 18K white gold with bracelet; gray configuration.
* 5146/1R-001 — 18K rose gold with bracelet; cream configuration.
* 5146/1J-001 — 18K yellow gold with bracelet; cream configuration.

Important: I have deliberately not listed a 5146R-010 because I could not establish sufficiently reliable reference-specific evidence for that exact suffix. We should not manufacture an alternative reference merely because other 5146 variants exist.

Technical Family Note

The 5146 family is built around the Calibre 324 S IRM QA LU, an automatic annual-calendar movement combining day and month indications, date, moon phases and power reserve. Reference-specific records identify the movement at 30 mm diameter, 36 jewels and 28,800 semi-oscillations/hour, with a power reserve of approximately 45 hours.