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Charles Edouard Jacot - 18k Gold Hunter Pocketwatch
Estimated price for orientation: 4 750 $
Category: Antique
Class:
Description
Charles Edouard Jacot (1817-1897) - 18k Gold Pocketwatch Jacot invented a modification of the duplex escapement with a jumping seconds hand, known as the “Jacot Duplex”, used extensively in watches made for the Chinese market. While in America, he registered 12 American patents for perfecting the construction of watches. The stop-watch feature was patented on June 8, 1858, by which time Jacot had already returned to Switzerland.
During the 20 years that Jacot spent in the Unites States, he began a practice that continued throughout his life; the registration of American patents, 12 in all, for perfecting the construction of watches. The first came in 1840 for a duplex escapement. Another was granted in 1852 for an escapement with an escape wheel in the shape of a three-pointed star with 3 vertical impulse pins placed on small platforms between the points; this influential escapement was able to beat 21,600 times per minute. He later registered patents for a ¾ plate movement, watch key, and various winding mechanisms.
Description
Charles Edouard Jacot (1817-1897) - 18k Gold Pocketwatch Jacot invented a modification of the duplex escapement with a jumping seconds hand, known as the “Jacot Duplex”, used extensively in watches made for the Chinese market. While in America, he registered 12 American patents for perfecting the construction of watches. The stop-watch feature was patented on June 8, 1858, by which time Jacot had already returned to Switzerland.
During the 20 years that Jacot spent in the Unites States, he began a practice that continued throughout his life; the registration of American patents, 12 in all, for perfecting the construction of watches. The first came in 1840 for a duplex escapement. Another was granted in 1852 for an escapement with an escape wheel in the shape of a three-pointed star with 3 vertical impulse pins placed on small platforms between the points; this influential escapement was able to beat 21,600 times per minute. He later registered patents for a ¾ plate movement, watch key, and various winding mechanisms.
During the 20 years that Jacot spent in the Unites States, he began a practice that continued throughout his life; the registration of American patents, 12 in all, for perfecting the construction of watches. The first came in 1840 for a duplex escapement. Another was granted in 1852 for an escapement with an escape wheel in the shape of a three-pointed star with 3 vertical impulse pins placed on small platforms between the points; this influential escapement was able to beat 21,600 times per minute. He later registered patents for a ¾ plate movement, watch key, and various winding mechanisms.