Important Modern & Vintage Timepieces

Geneva, May 14, 2017

LOT 509

PATEK PHILIPPE REF. 5170 BEYER 250TH ANNIVERSARY LIMITED EDITION OF 50 PIECES CHRONOGRAPH YELLOW GOLD Patek Philippe, Genève, Retailed by Beyer, Ref. 5170J. Sold in 2010. Limited Edition of 50 pieces commemorating the 250th Anniversary of Beyer Chronometrie, Zurich. Very fine and rare, water resistant, 18K yellow gold wristwatch with square button chronograph, register, tachometer and an 18K yellow gold Patek Philippe deployant clasp. Accompanied by the original fitted box, certificate of origin, extra caseback, instruction booklet and booklets.

CHF 40,000 - 60,000

HKD 320,000 - 480,000 / USD 40,000 - 60,000

Three-body, polished and brushed, screwed-down case back, buttons and crown, Triplock winding-crown protected by the crown guard, tachymeter graduation on the bezel to 400 units per hour, sapphire crystal. Matte silver with applied yellow gold Roman numerals and baton indexes, subsidiary dials for the seconds and the 30 minute register, outer 1/5th seconds track with 5-second Arabic markers, outermost tachometer scale. Yellow gold baton hands. Cal. 29-535, rhodium plated, stamped with the Patek Philippe Quality Seal, fausses cotes and oeil-de-perdrix decorations, straight-line lever escapement, Gyromax balance adjusted to heat, cold, isochronism and five positions, shock absorber, self-compensating free-sprung Spiromax balance spring.


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Grading System
Grade:
Case: 2-8

Very good

Slightly scratched
Movement: 1*

As new

Overhaul recommended, at buyer's expense
Dial: 1-01

As new

HANDS Original

Notes

Dial, case and movement signed. DIAM. 40 mm. THICKNESS 11 mm. Property of the original Swiss owner This present lot is one of the coveted limited edition produced as a collaboration between Patek Philippe and Beyer Chronometrie (Zurich) for Beyer's 250th Anniversary in 2010. There were only 50 examples made for this special occasion. Aside from the double signature, the chronograph and 30-minute register hands are in blue as well as having a blue tachymeter scale instead of the pulsation scale which is used for the regular production model of this reference.