Important Collectors Watches, Pocket ...

Hong Kong, Jun 08, 2008

LOT 18

Two-Train Independent Chronograph with Diablotine Attributed to P. H. Doret, Locle, No. 100182. Made for the American market, circa 1860. Fine, early, 18K gold, hunting-cased, two-train pocket watch with independent true chronograph without return to zero function and 1/4 seconds diablotine.

HKD 40,000 - 55,000

USD 5,200 - 7,200 / EUR 3,200 - 4,500

C. Four-body, "bassine et filets", mastermark J.T.S. & Co., polished, reeded band, button at 12 for the start/stop of the chronograph and diablotine. Hinged gold cuvette with engine-turned border. D. White enamel, radial Roman numerals, outer minute track and outermost fourths of a second ring, subsidiary 1/4 seconds diablotine. Blued steel Breguet hands. M. 20???, rhodium-plated, two-train, 25 jewels, fausses cotes decoration, counterpoised straight-line lever escapement, cut bimetallic compensation balance, blued steel Breguet balance spring, index regulator. Diam. 55 mm.


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Grading System
Grade: AA

Very good
Case: 3

Good
Movement: 3-9*

Good

Scratched

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

Good

HANDS Original

Notes

This watch can be considered a true chronograph with independent train. It is interesting because it probably dates from just before the Adolphe Nicole patent of 1862, and is therefore one of the early developments of the mechanism for chronographs. Unlike the Adolphe Nicole patent, the hands of the present watch cannot be reset to zero.