chronometer escapement

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• Escapement — redirects here. For the fisheries term for the stock surviving fishing pressures over a spawning cycle, see Spawn (biology). For other uses, see Escapement (disambiguation). A deadbeat escapement, used in many pendulum clocks. Click above to see… …   Wikipedia

• chronometer — chronometric /kron euh me trik/, chronometrical, adj. chronometrically, adv. /kreuh nom i teuhr/, n. 1. a timepiece or timing device with a special mechanism for ensuring and adjusting its accuracy, for use in determining longitude at sea or for… …   Universalium

• Chronometer watch — For other uses, see Chronometer (disambiguation). Inside chronometer mechanism . A chronometer watch is a specific type of watch tested and certified to meet certain precision standards. In Switzerland, only timepieces certified by the COSC may… …   Wikipedia

• chronometer watch — Watch Watch (w[o^]ch), n. [OE. wacche, AS. w[ae]cce, fr. wacian to wake; akin to D. wacht, waak, G. wacht, wache. [root]134. See {Wake}, v. i. ] [1913 Webster] 1. The act of watching; forbearance of sleep; vigil; wakeful, vigilant, or constantly… …   The Collaborative International Dictionary of English

• pocket chronometer — noun : a pocket watch with a chronometer escapement or with an observatory rating …   Useful english dictionary

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

• Grasshopper escapement — The grasshopper escapement is an unusual, low friction escapement for pendulum clocks invented by British clockmaker John Harrison around 1722. An escapement, a part of every mechanical clock, is the mechanism that releases the clock s gears to… …   Wikipedia

• half chronometer — noun : a watch having an escapement compounded of the lever and chronometer escapements; also : a fine lever escapement watch adjusted for temperature …   Useful english dictionary

• Thomas Earnshaw — Infobox Person name = Thomas Earnshaw image size = 160px caption = birth date = birth date|1749|2|4|df=y birth place = Ashton under Lyne death date = death date and age|1829|3|1|1749|2|4|df=y death place = London occupation = Watchmaker spouse =… …   Wikipedia

• John Arnold — Infobox Person name = John Arnold image size = 160px caption = birth date = 1736 birth place = Bodmin, Cornwall, England death date = 11 August 1799 death place = Eltham, Kent, England occupation = Watchmaker spouse = parents = children = John… …   Wikipedia

• Abraham-Louis Breguet — Born 10 January 1747(1747 01 10) Neuchâtel, Switzerland Died 17 September 1823 …   Wikipedia