balance-wheel jewel

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• Balance wheel — in a cheap 1950s alarm clock, the Apollo, by Lux Mfg. Co. showing the balance spring (1) and regulator (2) …   Wikipedia

• Wheel train (horology) — In horology, a wheel train (or just train) is the gear train of a mechanical watch or clock.[1] Although the term is used for other types of gear trains, the long history of mechanical timepieces has created a traditional terminology for their… …   Wikipedia

• Jewel bearing — A jewel bearing is a bearing in which a metal spindle turns in a jewel lined pivot hole. The hole is typically shaped like a torus and is slightly larger than the shaft diameter. In operation, the shaft tilts slightly so as to contact the jewel… …   Wikipedia

• Mechanical watch — The movement of a Russian watch A mechanical watch is a watch that uses a mechanical mechanism to measure the passage of time, as opposed to modern quartz watches which function electronically. It is driven by a spring (called a mainspring) which …   Wikipedia

• Pocket watch — This article is about the portable timepiece. For the Dave Grohl album, see Pocketwatch (album). A gold pocket watch with hunter case and watch chain …   Wikipedia

• ETA SA — Infobox Company company name = ETA SA company type = Member of the Swatch Group company company slogan = Elegance, Technology, Accuracy foundation = 1856 (1793, 1896) location city = Grenchen location country = Switzerland key people = industry …   Wikipedia

• Marine chronometer — Breguet twin barrel box chronometer. Classification Clock Industry Transportation …   Wikipedia

• Watch — For other uses, see Watch (disambiguation). Early wrist watch by Waltham, worn by soldiers in World War I (Deutsches Uhrenmuseum, Inv. 47 3352) A watch is a small timepiece, typically worn either on the wrist or attached on a chain and carried in …   Wikipedia

• Clock — For other uses, see Clock (disambiguation). Timepiece redirects here. For the Kenny Rogers album, see Timepiece (album). Platform clock at King s Cross railway station, London …   Wikipedia

• Pallet fork — The pallet fork or pallet lever is an integral component of the lever escapement of a typical mechanical watch. [cite web last = Odets first = Walt authorlink = coauthors = title = The Anchor Escapement work = The Horologium publisher =… …   Wikipedia

• Pin-pallet escapement — A Roskopf, pin lever, or pin pallet escapement is an inexpensive, less accurate version of the lever escapement, used in mechanical alarm clocks, kitchen timers, mantel clocks and, until the 1970s, cheap watches now known as pin lever watches. It …   Wikipedia