EP 2458458 B1 20171115 - Method for measuring the precision of a mechanical watch
Title (en)
Method for measuring the precision of a mechanical watch
Title (de)
Messverfahren der Präzision einer mechanischen Armbanduhr
Title (fr)
Procédé de mesure de la précision d'une montre mécanique
Publication
Application
Priority
EP 10192725 A 20101126
Abstract (en)
[origin: EP2458458A1] The method involves selecting a visual display device of a timepiece (10) as an experimental display. Measured instants at which the display is in display positions corresponding to images are respectively stored in correspondence with an inner/outer time reference source (3). Display values respectively corresponding to the images are determined. The values are stored in a memory in correlation with the instants. The temporary difference displayed between the values is calculated by a calculating unit (6). The deviation in rate of the display is calculated and displayed on a viewing unit (7). An independent claim is also included for a device for implementing a timepiece precision measuring method.
IPC 8 full level
G04D 7/00 (2006.01)
CPC (source: EP US)
G04D 7/004 (2013.01 - EP US); G04D 7/12 (2013.01 - US)
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
DOCDB simple family (publication)
EP 2458458 A1 20120530; EP 2458458 B1 20171115; CN 103229112 A 20130731; CN 103229112 B 20160406; HK 1187695 A1 20140411; JP 2014503801 A 20140213; JP 5671152 B2 20150218; RU 2013128951 A 20150110; RU 2566397 C2 20151027; US 2013329040 A1 20131212; US 2016070236 A1 20160310; US 9348317 B2 20160524; US 9383725 B2 20160705; WO 2012069444 A1 20120531
DOCDB simple family (application)
EP 10192725 A 20101126; CN 201180056946 A 20111122; EP 2011070625 W 20111122; HK 14100681 A 20140122; JP 2013540320 A 20111122; RU 2013128951 A 20111122; US 201113885558 A 20111122; US 201514944990 A 20151118