Swiss Gold Open Face Quarter Repeat Pocket Watch

• Engine Turned - Engine turning is a decorative technique used on metal surfaces to create intricate curving or geometric pattern. The process involves cutting a series of lines into the surface of the metal using a rose engine or decoration lathe which rotates the metal as it cuts, allowing the operator to create a repeating pattern that covers the entire surface. The resulting surface has a shimmering, reflective quality that is often described as "engine turned." Where an engine turned item has been enamelled, the term used to describe the decoration is usually guilloche.
  
  Engine turning was originally developed to decorate metal objects such as firearms, scientific instruments, and other metal objects that required precise and elegant design.
• Chapter Ring - A separate metal plate on the face of a clock, on which the numerals for the hours and sometimes parts of the hours, are displayed, usually wheel shaped and sitting on top of the dial plate. The chapter ring is often a feature of the clock and can be silvered or enamelled to stand as a contrast to its background. The hours are usually shown in Roman numerals, although in the late 19th and earlt 20th century, Arabic numerals became fashionable.
• Bezel - On a clock or watch, the bezel is the metal frame into which the watch or clock glass is fitted. In clocks, the bezel may include a hinge and a flange, in effect a door to the face of the clock. In jewellery the bezel is a band of metal with a projecting lip that holds the gemstone in its setting.
• Barrel (in a Clock) - In a clock or watch, the barrel is a cylindrical component that stores the energy from the mainspring. As the mainspring is wound, it stores energy in the barrel. As the clock or watch runs, the energy is gradually released from the barrel, turning the clock's gears and keeping the time.
  
  The barrel is typically located near the centre of the movement (the mechanism that powers the clock) and is connected to the center wheel, which drives the rest of the gears. The barrel typically has teeth on its outer surface that mesh with the gears in the movement, allowing it to transmit energy to the rest of the clock. Some barrels are designed to be wound by hand, while others are automatically wound by the motion of the wearer's arm.
• Brequet - Abraham Louis Breguet (1747-1823) was a French watch and clock-maker who brought new techniques, such as newly invented escapements, to a peak of perfection and was credited with the invention of the self-winding watch. He was famous throughout Europe, even providing watches to Turkey in the Eastern style, and even throughout the Napoleonic Wars continued to supply the English market. His English agents tried in vain to persuade him to settle in England, though Breguet made several visits. In 1802 Breguet received a gold medal at an exhibition of French industrial products for a 'new, constant-force, free escapement'. Breguet also made fine and complicated carriage clocks. He eschewed mass production methods and numbered his creations.

This item has been included into following indexes:

• pocket watches, case type
  • open face, gold / gold-plated case 1,381
  • silver case 905
  • silver, open face 204
• pocket watches, country - Swiss made 463