Important Modern & Vintage Timepieces

Hong Kong, Jun 25, 2010

LOT 406

Chrono-Micrometer Swiss, case No. 101593. Made for the English market, the case with Chester hallmarks for 1889-90. Rare and unusual, 18K gold, keyless pocket watch with patent chronograph and 30-minute register of uncommon construction.

HKD 20,000 - 33,000

USD 2,600 - 4,000 / EUR 2,200 - 3,500

C. Four-body, bassine et filets, polished. Hinged gold cuvette. D. White enamel, radial Roman numerals, outer minute track, outermost chronograph track divided into fifths with five-minute Arabic numerals, sunk subsidiary seconds, 30-minute register with the hand rotating counterclockwise. Blued steel hands. M. 42 mm., frosted gilt, 3/4-plate, 14 jewels, lateral counterpoised lever escapement, cut-bimetallic compensation balance with blued steel Breguet balance spring, index regulator, patented chronograph mechanism. Diam. 50 mm.


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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

The fourfold concept involves an additional wheel in the train, allowing the seconds hand to rotate counterclockwise, and a relatively simple stop mechanism. The chronograph engagement is taken from Lugrin?s patent.