Important Collectors’ Wristwatches, P...

Geneva, Nov 16, 2008

LOT 93

Thomas Engel, ?Chronometre? No. 6. Made in the 1980s. Very fine and rare, 18K yellow gold, keyless, ?Chronomètre ? Type Concours Observatoire? pocket watch with 30-hour power reserve indication, thermometer, calendar and regulator dial. Accompanied by a fitted box and spare mainspring.

CHF 15,000 - 20,000

USD 14,000 - 18,000 / EUR 9,500 - 13,000

C. Three-body, ?Empire?, screwed-down back cover decorated with engine-turning grains d?orge, polished band and bezel, gold glazed cuvette, ball-type swiveling pendant acting as the winding crown. D. Silver, radial Roman hour numerals on brushed eccentric chapter ring, outer minute dot divisions and Arabic five-minute numerals, engine-turned and whitened center, subsidiary day of the week dial, thermometer sector at 6 o?clock, aperture for power reserve indication. Gold Breguet hands. M. 22???, Cal. 5011K, rhodium-plated, fausses cotes decoration, stamped with Thomas Engel punch mark, 19 jewels, straight-line lever escapement, monometallic balance, self-compensating balance spring with outer terminal curve, balance and escape wheel pivots with shock absorbers, micrometer regulator. Dial, case and movement signed. Diam. 56 mm.


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Grading System
Grade: AA

Very good
Case: 2

Very good
Movement: 2

Very good
Dial: 2-7-01

Very good

Oxidized

HANDS Original

Notes

Professor Thomas Engel Professor Thomas Engel is known worldwide for his research in the production of polymers. In 1966, he developed a process for cross-linking plastic extrusions, particularly those of cross-linked polyethylene. Based on the reaction of plastics at pressures of 15?000 to 150?000 psi and temperatures of approximately 300° and the presence of a peroxide catalyst, a cross-linking agent, this process was a significant step forward in plastics technology. It resulted in the production of a high molecular weight product with improved heat and chemical resistance, which is still in use nearly thirty years later. Engel has received numerous prizes and honors