Method for adjusting the chronometry of a timepiece movement intended to operate in a low-pressure atmosphere

The invention relates to a method for adjusting the chronometry of a mechanical timepiece movement intended to operate in a low-pressure atmosphere, comprising the following successive operations: 1.placing the movement in an atmosphere at the low-pressure pre-established for the normal operation of...

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Bibliographic Details
Main Authors CHATEL CYRILLE, BAS KEWIN
Format Patent
LanguageChinese
English
Published 06.08.2014
Subjects
HOROLOGY
MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL
MECHANICALLY-DRIVEN CLOCKS OR WATCHES
PHYSICS
TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS
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Summary:The invention relates to a method for adjusting the chronometry of a mechanical timepiece movement intended to operate in a low-pressure atmosphere, comprising the following successive operations: 1.placing the movement in an atmosphere at the low-pressure pre-established for the normal operation of the movement; 2. measuring the advance or delay (typically advance +DeltaRho) of the timekeeping precision of the movement at said low pressure. 3. returning the movement to ambient atmospheric pressure; 4. adjusting the movement in order to compensate for the advance or delay previously measured (typically implementing a delay -DeltaRho) during operation at low pressure; 5. returning the movement to the atmosphere at the low pressure pre-established for the normal operation of the movement.
Bibliography:Application Number: CN201280060553