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翻訳と辞書　辞書検索 [ 開発暫定版 ] スポンサード リンク Certified chronometer ： ウィキペディア英語版 Certified chronometer A certified chronometer is a high-precision chronometer 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 number engraved on its movement and a certification number given by the COSC. Each movement is individually tested for 14 days and nights, in 5 positions and at 3 temperatures. Each movement is individually measured. To earn the title of 'chronometer' a watch must meet the criteria in ISO 3159. Any watch with the denomination "chronometer" is provided with a certified movement. The term chronometer is often wrongly applied to timekeeping instruments fitted with an additional mechanism that may be set in motion by pushbuttons to enable measurement of the duration of an event. Such an instrument is in fact a chronograph or chronoscope. It may of course be chronometer-certified, provided it meets the criteria set for the standard. ==External links== * (Contrôle Officiel Suisse des Chronomètres - COSC ) * (Accuracy of wristwatches ) 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Certified chronometer」の詳細全文を読む スポンサード リンク 翻訳と辞書 : 翻訳のためのインターネットリソース Copyright(C) kotoba.ne.jp 1997-2016. All Rights Reserved.