Usher & Cole 18ct Gold Half Hunter Pocket Watch
18ct gold half hunter pocket watch by the prominent maker Usher & Cole, London, number 28446, 1.89 in. plain case hallmarked London 1895 by Philip Woodman & Sons, Smith Street, Northampton Square, Clerkenwell, London. Covers and inner 18ct dust cover with numbers matching movement. Front cover with blue enamel Roman numerals and rail track minutes framing the window. White enamel dial, Roman numerals, minute indices, sunken subs seconds dial at VI. Faint hairlines at II and V. Small dents to case back. 3/4 plate back movement with lever escapement, signed 'Usher & Cole, London. 28446. Makers to the Admiralty'. 107gm
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- Hunter - A hunter pocket watch is the type where the case includes a spring-hinged circular metal lid or cover, that closes over the glass face of the watch, protecting it from dust, scratches and other damage or debris. The majority of antique and vintage hunter-case watches have the lid-hinges at the 9 o’clock position, suiting the right handed user.
- Half Hunter - A half-hunter (or "demi hunter") pocket watch is one in which the outer lid over the face of the watch has a cut out centre section, enabling the owner to view the hands to tell the time, without having to open the lid. On some half-hunter watches, the hours are marked on the outer lid.
- 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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