Important Modern & Vintage Timepieces
Hong Kong, Jul 23, 2020
LOT 1
Ami Lecoultre
Movement, patented split-seconds chronograph with oscillating pinion and “foudroyante”, patented non-magnetic compensated balance; white metal
Movement, patented split-seconds chronograph with oscillating pinion and “foudroyante”, patented non-magnetic compensated balance; white metal
HKD 72,000 - 96,000
CHF 9,000 - 12,000 / USD 9,500 - 12,700
White metal, open-face, keyless-winding, round-shaped, pocket watch movement in a working-case, with three horological complications:
- 1⁄4 second chronograph with oscillating pinion device (activated by the single push-piece located on the winding-crown)
- Split-seconds (activated by the push-piece located on the case- band at 11 o’clock)
- 1⁄4 of second, known as foudroyante seconds (subsidiary dial at 6 o’clock)
White enamel dial with radial Roman numerals. Blued steel “Pear” hands.
Movement 20’’’, 3⁄4 plate, rhodium-plated, going barrel, straight-line equilibrated lever escapement, patented non-magnetic platinum alloy and brass compensated balance with gold poising screws and blued steel hairspring with terminal curve, index regulator with swan-neck spring and precision-regulating device for fast / slow by means of an eccentric snail, adjusted.
Movement 20’’’, 3⁄4 plate, rhodium-plated, going barrel, straight-line equilibrated lever escapement, patented non-magnetic platinum alloy and brass compensated balance with gold poising screws and blued steel hairspring with terminal curve, index regulator with swan-neck spring and precision-regulating device for fast / slow by means of an eccentric snail, adjusted.
| Grading System | |
|---|---|
Grade: AAA |
Excellent |
Case: 2 |
Very good |
Movement: 2* |
Very good Overhaul recommended, at buyer's expense |
Dial: 2-01 |
Very good HANDS Original |
Brand Ami Lecoultre, Le Brassus & Geneva
Year circa 1888
Movement No. 3 482
Caliber 20’’’, lever escapement
Dimensions Ø 47.1 mm.
Signature dial and movement
Accessories copies of the invention patents
Notes
Movement based on the American invention patent No. 355 403, delivered on January 4, 1887, to Ami LeCoultre, Le Brassus, for a “Stop Watch.”.
Metallic alloy of the balance based on the American invention patents No. 382 826 and No.
382 827, delivered on May 15, 1888, to Heinrich Ostermann, chemist, and Axel Prip, jeweller, Geneva, for a “Alloy.”, and also based on the American invention patents No. 388 145, No. 388 146 and No. 388 147, delivered on August 21, 1888, to Heinrich Ostermann, chemist, and Charles Lacroix, director of the Usine Genevoise de Dégrossissage d’or, Geneva, for a “Metallic Alloy.”.
Lecoultre, Ami
Charles-Ami Lecoultre-Piguet (1843-1921) began his career in Le Brassus as a manufacturer of complicated watches. In 1878, he exhibited a highly complicated watch at the Universal Exhibition in Paris. This watch, rewarded with a bronze medal, required four years of work and was made with Louis-Elisée Piguet (1836-1924), also from Le Brassus. The watch, known as “La Merveilleuse”, is today kept in the Musée International d’Horlogerie of La Chaux-de-Fonds (Inv. I-501).
Metallic alloy of the balance based on the American invention patents No. 382 826 and No.
382 827, delivered on May 15, 1888, to Heinrich Ostermann, chemist, and Axel Prip, jeweller, Geneva, for a “Alloy.”, and also based on the American invention patents No. 388 145, No. 388 146 and No. 388 147, delivered on August 21, 1888, to Heinrich Ostermann, chemist, and Charles Lacroix, director of the Usine Genevoise de Dégrossissage d’or, Geneva, for a “Metallic Alloy.”.
Lecoultre, Ami
Charles-Ami Lecoultre-Piguet (1843-1921) began his career in Le Brassus as a manufacturer of complicated watches. In 1878, he exhibited a highly complicated watch at the Universal Exhibition in Paris. This watch, rewarded with a bronze medal, required four years of work and was made with Louis-Elisée Piguet (1836-1924), also from Le Brassus. The watch, known as “La Merveilleuse”, is today kept in the Musée International d’Horlogerie of La Chaux-de-Fonds (Inv. I-501).