Dingwall 14ct Gold Pocket Watch with Longines Movement
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14ct gold open face pocket watch retailed by D. R. Dingwall Ltd. Winnipeg, Canada. Possibly a Longines movement. 46 mm plain case, c.1920, marked for the American Watch Case Co., Toronto. with internal 14ct gold dust cover. High grade Swiss movement with 'wolf's tooth' winding wheels, micrometer adjustment, 21 jewels, adjusted, lever escapement. Dingwall used private label movements for their watches, frequently Longines. White enamel dial with Roman numerals, rail track minutes, sunk subs seconds dial at 6, blued steel Breguet hands. 72gm
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- Movement - The technical name for the workings of a clock or watch, and does not include the dial or case.
- 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.
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