Important Collectors’ Wristwatches, P...

Geneva, Mandarin Oriental Hotel Du Rhône, Nov 12, 2006

LOT 340

Jules Jürgensen, Copenhagen, No. 11526. Made in Switzerland circa 1880. Very fine, hunting-cased, keyless, 18K pink gold pocket watch.

CHF 5,000 - 7,000

EUR 3,200 - 4,500 / USD 4,000 - 5,600

C. Four-body, "bassine et filets", solid, polished, hinged gold cuvette. D. White enamel with painted radial Roman numerals, outer minute track, sunk subsidiary seconds dial. Blued steel "Breguet" hands. M. Cal. 20''', nickel, 19 jewels, most in screwed gold chatons, straight line counterpoised long lever escapement, cut bimetallic compensation balance with gold screws, blued steel Breguet balance-spring, off-center index regulator with Jürgensen micrometer scale and swan neck micrometric adjustment to the regulator, Jules Jürgensen patented bow-setting mechanism. Dial, case and movement signed. Diam. 55 mm. Property of an Italian Gentleman


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Grading System
Grade: AA

Very good
Case: 3

Good
Movement: 3*

Good

Overhaul recommended, at buyer's expense
Dial: 3-01

Good

HANDS Original

Notes

This watch?s index regulator is very unusual due to the addition of swan-neck micrometric regulation at a fixed point of the regulator index?s arc. The watch probably first went through its usual fine adjustment and then for some reason, possibly inclusion in chronometric trials, the micrometric regulator was added to ensure a high precision level of regulation. Jules Frédéric Jürgensen (1808-1877) The son of Urban Jürgensen, he was born in Le Locle but as a child moved with his parents to Denmark. In 1830, after the death of his father, the company was taken over by Jules and his brother Louis Urban. In 1833, Jules returned to Le Locle and built up an important business. He stamped most of his watches on the pillar plate under the dial: Jules Jürgensen of Copenhagen.