chronometer
51chronometer — n. a time measuring instrument, esp. one keeping accurate time at all temperatures and used in navigation …
52Box chronometer — Chronometer Chro*nom e*ter, n. [Gr. ? time + meter: cf. F. chronom[ e]tre.] 1. An instrument for measuring time; a timekeeper. [1913 Webster] 2. A portable timekeeper, with a heavy compensation balance, and usually beating half seconds; intended… …
53Pocket chronometer — Chronometer Chro*nom e*ter, n. [Gr. ? time + meter: cf. F. chronom[ e]tre.] 1. An instrument for measuring time; a timekeeper. [1913 Webster] 2. A portable timekeeper, with a heavy compensation balance, and usually beating half seconds; intended… …
54To rate a chronometer — Chronometer Chro*nom e*ter, n. [Gr. ? time + meter: cf. F. chronom[ e]tre.] 1. An instrument for measuring time; a timekeeper. [1913 Webster] 2. A portable timekeeper, with a heavy compensation balance, and usually beating half seconds; intended… …
55Marine chronometer — Breguet twin barrel box chronometer. Classification Clock Industry Transportation …
56Certified chronometer — A certified chronometer is a high precision watch capable of displaying the seconds and which has been tested and certified by an official neutral body (Contrôle Officiel Suisse des Chronomètres COSC). Each chronometer is unique, identified by a… …
57Observatory Chronometer — In the world of mechanical timepieces, accuracy is paramount. In the times before electronics, mechanical timepieces called marine chronometers were developed to a very high degree of accuracy and used for maritime navigation. In order to test… …
58Vacuum Chronometer Corp. — 1952 saw the realisation of a new concept of watch case ecapseling a Swiss automatic movement under a vacuum of air of at least 80% giving birth to a very special watch, the Vacuum Chronometer, known for its incredible resistance to mpostire,… …
59Longitude by chronometer — Longitude by Chronometer, known by mariners as Long by Chron , is an astronomical navigation method of calculating an observer s position on earth. The method gives the observer a position line on which the observer is situated. Usually the… …
60Box chronometer — Box Box, n.; pl. {Boxes} [As. box a small case or vessel with a cover; akin to OHG. buhsa box, G. b[ u]chse; fr. L. buxus boxwood, anything made of boxwood. See {Pyx}, and cf. {Box} a tree, {Bushel}.] 1. A receptacle or case of any firm material… …
