Geneva, May 15, 2023

LOT 451

PATEK PHILIPPE, REF. 503, PERPETUAL CALENDAR SOLAR CLOCK, BRASS

CHF 15,000 - 20,000

EUR 15,300 - 20,400 / USD 16,900 - 22,600 / HKD 134,000 - 178,000

Sold: CHF 20,000

A fine and rare, solar-powered mechanical gilt brass perpetual calendar clock


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Grading System
Grade: AAA

Excellent

Case: 3-8

Good

Slightly scratched

Movement: 3 *
Dial: 3-6-8-01

Good

Slightly oxidized

Slightly scratched

HANDS Original

Brand Patek Philippe, Switzerland

Reference 503

Year circa 1968

Movement No. 873519

Case No. 1601

Caliber 17-250, 29 jewels

Dimensions 142 x 201 x 90 mm

Signature dial, case and movement signed

Accessories instruction sheet

Notes

The reference 503.24 E
This reference was launched in circa 1964 and was in production for around five years.
This model is one of the “Pendulette a remontage automatique par la lumiere” (clock with automatic winding by light) collection launched in the 1960’s, of which the “Pendule Carrée” (square clock) is the most common; it is with the “Dome” clock the most classical table timepieces made by Patek Philippe. All of them are wound with the sun energy, through captors that power the mechanical 17-250 E calibre, a pocket watch movement, laying horizontally.
The Ref. 503.24 E is made of gilt brass cabinet with satin-finish, silvered metal dial and gilded brass “Baton” hands. Very few examples were produced, of which 15 are known to this day (four of them were delivered to Tiffany & Co, New York).

Provenance

Property of a Swiss Gentleman