Important Collectors’ Wristwatches, P...

Geneva, Mandarin Oriental Hotel Du Rhône, Oct 15, 2006

LOT 127

"Machine for Cutting the Incline of Cylinder Escape Wheel Teeth" C.R. French. Made circa 1890. Fine and rare, steel and brass machine for cutting the incline of cylinder escape wheel teeth.

CHF 2,000 - 3,000

EUR 1,300 - 1,900 / USD 1,600 - 2,500

Sold: CHF 2,360

Circular brass base, adjustable flat steel bed, adjustable stocks for holding the work, cutting wheel held between two adjustable centers and driven by a pulley wheel, adjustable steel frame above for raising and lowering the cutting wheel operated by a crank handle. Dim. 153 x 134 mm.
Good condition


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Notes

Provenance: The Belmont Collection. Literature: "L'Echappement à Cylindre (1720-1950)", Henry L. Belmont, Editions Technicmedia, p. 143.