Geneva, Nov 05, 2023

LOT 290

ROLEX, SWITZERLAND, CHRONOMETER MOVEMENT FOR OBSERVATORY TRIAL, GILT BRASS

CHF 2,000 - 4,000

EUR 2,200 - 4,300 / USD 2,300 - 4,500 / HKD 17,400 - 34,700

TO BE SOLD WITHOUT RESERVE

Sold: CHF 1,250

A very fine and extremely rare, manual wind chronometer movement housed in a plexiglass case for observatory trials


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Grading System
Grade: AAA

Excellent

Case: 3-8

Good

Slightly scratched

Movement: 3 *

Brand Rolex, Switzerland

Year Circa 1960's

Movement No. D266305

Diameter 52

Caliber 17 jewels

Notes

Although unsigned (which is logical as these were never meant to be commercialised), only to be sent to the observatory trials but the movement layout and numbers only correspond to a Rolex movement. Interestingly on the front crystal, there is a light engraving saying "Prototype 28'800 Ah"

Provenance

Property of a Swiss collector