Patek Philippe Reference 5040 Perpetual Calendar Wristwatch

Technical characteristics

Case

18k yellow gold, snap-on case back

Size

36 mm diameter

Type

Perpetual calendar watch

Caliber

cal. 240 Q automatic, 27 jewels

Case number

2’923’307

Place recorded

Switzerland

Movement number

773’479

Maker / attribution

Patek Philippe

Design

Visible features

• Tonneau-shaped yellow gold case with a smooth bezel and crown at 3 o'clock. • Silvered dial with applied gold-toned Breguet-style numerals and leaf hands. • Sub-dials at 9 o'clock (day and 24-hour register), 3 o'clock (month and 4-year leap cycle), and 6 o'clock (date and moon-phase aperture). • Fitted with a brown alligator-pattern leather strap.

Case Form and Dial Layout

This Patek Philippe Reference 5040 features a curved, tonneau-shaped 18k yellow gold case described in cataloguing as measuring 36 mm in diameter. Direct front-facing observation shows a smooth, rounded bezel framing a silvered dial, a winding crown positioned at 3 o'clock, and downward-curving lugs fitted with a brown leather strap showing an alligator scale pattern. The dial displays applied gold-toned Breguet-style numerals paired with central leaf-shaped hands. The perpetual calendar indications are distributed across three subsidiary dials: an aperture at 9 o'clock integrates the day register with a 24-hour cycle, the 3 o'clock sub-dial tracks the month and a 4-year leap cycle, and the 6 o'clock register presents the date ring encircling a moon-phase aperture.

Reported Movement and Classification

According to the auction cataloguer, the watch is powered by an automatic caliber 240 Q movement equipped with 27 jewels and bearing movement number 773’479. The internal movement and its markings are enclosed within a solid snap-on case back stamped with case number 2’923’307. The cataloguing dates the piece to circa 1997 and classifies it as a second series example within the broader 1992 to 2007 production window of Reference 5040. Sotheby's notes the reference is signed across the case, dial, and movement, and states this specimen is secured by an 18k yellow gold Patek Philippe buckle.

Documentation and Evidentiary Boundaries

Physical inspection is restricted to a single frontal photograph of the assembled watch. Consequently, mechanical health, internal movement finishing, case-back stamps, and buckle hallmarks are not visible in the provided image and rely entirely on the auction house report. The lot does not include a presentation box according to the source. Accompanying documentation is confined to secondary paperwork, listed in cataloguing as a duplicate of the Certificate of Origin and a copy of the original Patek Philippe Certificate of Origin.

Identification

Reference

5040

Serial number

2’923’307

Source note

Facts transcribed from the linked source listing or collection record. Attribution and specifications are source-reported and have not been independently authenticated.

Catalogue references

No catalogue numbers recorded. Numbers are only published once transcribed from a verified edition of a standard catalogue — they are never inferred.