18ct Gold Patek Philippe Pocket Watch by Black Starr & Frost
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18ct Gold slim dress style Pocket Watch, with movement by Patek Philippe & Co for Black, Starr & Frost, Gorham. Number 809036. 45 mm slim case marked 18K to back cover and inner dust cover, both with matched numbers to movement, c.1930s. Champagne dial with gold raised Arabic numerals, minute indices, signed 'Black Star & Frost, Gotham' and Patek Philippe & Co above a subsidiary seconds dial at 6. Near mint condition, beautifully finished 18 jewel movement. adjusted to eight positions, lever escapement. Signed Patek Philippe & Co., Geneva, Switzerland' and numbered 809036. 50gm
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- Lever Escapement - A lever escapement is a type of escapement mechanism used in mechanical clocks and watches to regulate the timekeeping of the movement. It was invented by British clockmaker Thomas Mudge in the 18th century and is now widely used in modern mechanical timepieces.
The lever escapement consists of three main parts: the escape wheel, the pallet fork, and the lever. The escape wheel is a wheel with teeth that is driven by the clock or watch's main spring or weight. The pallet fork is a two-pronged component that is positioned so that it can engage with the teeth of the escape wheel, and the lever is a small, L-shaped component that is attached to the pallet fork.
When the escape wheel turns, one of its teeth pushes against one of the pallet fork's prongs, causing the fork to pivot. As the pallet fork pivots, it releases the tooth and engages with the next tooth on the opposite side of the escape wheel. At the same time, the lever, which is connected to the pallet fork, rocks back and forth, allowing the escape wheel to turn at a regulated rate.
The lever escapement is prized for its accuracy and reliability and is commonly used in high-end mechanical watches. It allows for precise timekeeping by ensuring that the movement of the watch or clock is regulated and consistent, and its compact size makes it an ideal choice for use in small, portable timepieces. - Movement - The technical name for the workings of a clock or watch, and does not include the dial or case.
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