Important collector's watches, wristw...

Hotel Richemond, Geneva, Apr 13, 2002

LOT 49

Probably Dubois et Fils, Locle, circa 1800, made for the Chinese market. Very fine and very rare pair of 18K gold, diamond-set, dead center-seconds watches, with Pouzait escapement and stop feature.

CHF -

EUR 0 - 0 / USD 0 - 0

Sold: CHF 124,500

C. Two-body, ?Directoire?, polished. D. White enamel, upright Roman numerals, outer minute divisions, winding aperture at 4 o?clock. Gold ?Arrow? hands. M. 50 mm, gilt brass full plate, fixed barrel, slow-beat Pouzait lever escapement with large diamond-set balance with four curved arms set in the center of the back plate, large safety roller acting on a single pin set on one of the arms and acting on inside and outside walls depending if the entry or exit pallet is engaged, small lever protruding at 3 o?clock to stop the watch. Diam. 58 mm.


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Grading System
Grade:
Case: 3

Good

Movement: 3*

Good

Overhaul recommended, at buyer's expense

Dial: 2-01

Very good

HANDS Original

Notes

An identical watch is part of the Wilsdorf Collection, published in ?Rolex, Montres et Emaux de Genève?, page 171. Pouzait Escapement During the last quarter of the 18th century, several watchmakers tried to produce watches with dead center-seconds hands, much in favor among the scientific community and on the Chinese market. The attempt made by Moïse Pouzait featured a lever escapement associated with a large seconds-beating balance. Due to its spectacular aspect, and in spite if its inertia sensitivity, Pouzait?s escapement was much appreciated by the Chinese, before the invention by Jacot of the so-called ?Chinese duplex? escapement, enabling the production of dead center-seconds watches. In 1786 Pouzait made a model of his escapement which he presented to the Geneva Société des Arts, and which can still be seen in their collection. Pouzait. (1743-1793) In 1786 Jean Moïse Pouzait presented to the Society of Arts in Geneva a model of his lever escapement. The idea seems to derive from the pin-wheel escapement in clocks and as in the pin-wheel there was no safety action (later ones, including these two, have the safety action). There are some differences, however: Pouzait?s pallets are not just pins, they are small pin-like rectangular teeth, so in fact it is an escapement with divided lift. Pouzait, who eleven years earlier had invented the independent seconds mechanism, possibly wanted to make a simpler mechanism for dead seconds. Whatever were his motives, he was one of the first to introduce the lever escapement to the Continent.