Important collector's watches, wristw...

Hotel Richemond, Geneva, Apr 13, 2002

LOT 403

French, circa 1830. Very fine and rare skeletonized month-going table regulator with equation of time, annual calendar, one-minute remontoire and special gridiron compensation.

CHF 55,000 - 65,000

EUR 38,000 - 45,000 / USD 33,000 - 40,000

Sold: CHF 80,500

C. rectangular marble base with four gilt bronze bun feet decorated with stripes of beads. D. White enamel ring with radial Roman numerals and outer minute/seconds divisions, inner and outer ormolu frame with beaded patterns. Gilt brass ?arrow? hands, blued steel equation hand with gilt sun at its tail, skeletonized center set with equation and motion trains. Below spoked silvered annual calendar wheel with blued steel ?arrow? hand and equation cam below. M. Reversed Y-shaped gilt brass frame with four knurled level adjusting knobs, going barrel, three-wheel remontoire train winding endless rope having a weight and counterweight for driving the wheel which drives the escape wheel, pin wheel escapement, spring suspension set in a bracket mounted to gridiron compensating frame of four steel and four brass rods, steel rod, brass bob, Berthoud-type equation mechanism. Dim. 42 cm., width19 cm.


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Grading System
Grade:
Case: 3

Good
Movement: 3*

Good

Overhaul recommended, at buyer's expense
Dial: 3-12-01

Good

Worn

HANDS Original

Notes

The combination of remontoire, equation of time and the unusual compensation is unique in a skeleton clock, no other like this is known. The remontoire system is ingeniously simple utilizing worm-gear and star-shaped governor which allows for a short train but long duration For an explanation concerning the equation of time, see lot 46.