Patek Philippe ref 5146 white gold with extract

The Patek Philippe Annual Calendar Ref. 5146G-010 presents one of the manufacture's most accomplished calendar watches in an elegant 39 mm white-gold case. Its ardoise grey, sunburst dial brings a contemporary tonal depth to the traditionally composed display, with applied 9, 12, and 3 Arabic numerals, baton indexes, leaf hands, and a dark blue moon-phase disc. The calendar indications are arranged with characteristic Patek Philippe balance: day at 9 oclock, month at 3, date at 6, power-reserve display below 12, and moon phase integrated above the date. This example is accompanied by an official Patek Philippe Extract from the Archives, a document that records the key features and date of sale preserved in the manufacture's historical records.

Key Specifications

Reference	5146G-010
Model	Annual Calendar with moon phases and power-reserve indication
Case	39 mm 18k white-gold round case with sapphire-crystal display back
Dial	Ardoise grey sunburst dial with applied white-gold Arabic numerals and baton indexes
Movement	Patek Philippe Calibre 324 S IRM QA LU, self-winding
Technical Data	36 jewels, 28,800 vph, approximately 45-hour power reserve
Functions	Hours, minutes, central seconds, annual calendar, day, month, date, moon phases, and power-reserve indication
Crystal	Sapphire crystal front and sapphire-crystal display back
Strap	Black alligator leather strap, as fitted
Accessories	Official Patek Philippe Extract from the Archives

Collector's Note

Introduced in 2005 as the successor to the Ref. 5035, the 5146 refined the Annual Calendar into a slightly larger, more assertive 39 mm format. Patek Philippe developed the annual calendar in 1996 as a practical alternative to a perpetual calendar: the mechanism automatically distinguishes 30-day and 31-day months and needs correction only once each year, at the transition from February to March. On the 5146, this useful complication is paired with a power-reserve indication and a moon-phase display, giving the dial both technical substance and visual rhythm.

At its heart is the automatic Calibre 324 S IRM QA LU, a 36-jewel movement beating at 28,800 vibrations per hour. Its designation describes a small-seconds movement with power-reserve indication, annual calendar, and lunar display. Through the sapphire back, the movement can be appreciated as the mechanical foundation for the dial-side architecture. The Extract from the Archives is especially meaningful with a modern Patek Philippe reference: issued from the manufacture's carefully maintained records, it transcribes the watch's key relevant features and its recorded date of sale. Together with the white-gold case and ardoise dial, it completes a particularly well-documented expression of the Ref. 5146G.

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