Important Watches, Wristwatches and c...

Geneva, Apr 20, 1996

LOT 339

L. Leroy & Cie., Paris, L. Leroy & Cie. - Carpentier, "Chronostat" Prototype.

CHF 10,000 - 15,000

C. Cylindrical brass bowl with screwed bezel. D. Silvered with Arabic numerals and subsidiary seconds. M. Electrically powered, brass full plate, Sully type "shaft cutting" frictional rest escapement with vertical escape wheel and double pallet on the balance staff, controlled by a solid graphite balance. Signed on the dial. Dial diam. 70 mm. In good condition. L. Leroy & Cie., Paris - "Chronostat No. 1". C. Three body mahogany deck-watch type mahogany box. Cylindrical brass bowl with screwed bezel. D. Silvered with Arabic numerals and subsidiary seconds. Blued steel "spade" hands. M. Brass, electrically powered, brass, Sully type "shaft cutting" frictional rest escapement with vertical escape wheel and double pallet on the balance staff, "Integral" Guillaume balance, free sprung blued steel helical balance spring with terminal curves. Signed on the dial. h1 very good condition. Dial diam. 70 mm. L. Leroy & Cie., Paris - "Chronostat No. 2". C. Double body mahogany box. Cylindrical nickel bowl with screwed bezel. D. Silvered with Arabic numerals and subsidiary seconds. Blued steel "spade" hands. M. Electrically powered, spring detent escapement, "Integral" Guillaume balance, free sprung blued steel helical balance spring with terminal curves. Signed on the dial and movement. In very good condition. Dial diam. 70 mm. Lot of three.


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Notes

The "Chronostats" Type I" and Type II", which were sold by L. Leroy & Cie. from 1957 onwards were already controlled by transistors. The prototype and the Chronostat No.1 and No. 2 now offered for sall are the very first ever made and according to the registers were never sold.