Important Collectors' Wristwatches, P...

Geneva, Hotel Noga Hilton, Oct 16, 2005

LOT 168

Thomas Engel, ?Chronometre? No 8. Made in the 1980s. Very fine and rare, 18K yellow gold, keyless, ?Chronomètre ? Type Concours Observatoire? pocket watch with 30-hour power reserve, thermometer and calendar. Accompanied by a fitted box, certificate and spare mainspring.

CHF 22,000 - 27,000

EUR 14,000 - 18,000 / USD 18,000 - 22,000

Sold: CHF 25,300

C. Three-body, ?Empire?, screwed-down back cover decorated with engine-turning, polished band and bezel, gold glazed cuvette, balltype swiveling pendant acting as the winding crown. D. Silver, radial Roman numerals on brushed chapter ring, outer minute dot divisions, engine-turned and whitened center, subsidiary seconds, thermometer sector at 9 o?clock, days of the week between 2 and 3 o?clock, aperture for power reserve indication. Gold Breguet hands. M. 22???, Cal.5011K, rhodium-plated, ?fausses côtes? decoration, stamped with Thomas Engel punch mark, 19 jewels, straight-line lever escapement, monometallic balance, self-compensating balancespring with outer terminal curve, balance and escape wheel pivots with shock absorbers, micrometer regulator. Dial, case and movement signed. Diam. 56 mm.


LOADING IMAGES
Click to full view
Image
Grading System
Grade: AA

Very good
Case: 3

Good
Movement: 3*

Good

Overhaul recommended, at buyer's expense
Dial: 2-01

Very good

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 for his work. In 1972, he was awarded the ?Diesel Prize? along with Dr. Wernher von Braun, the rocket and space technologist.