179727 ⎘
Apparatus for measuring unknown time intervals by mechanical means using a mechanical oscillator; Watches or clocks with stop devices, e.g. chronograph with start-stop control mechanisms
Sub-classes:MECHANISM FOR MEASURING TIME FOR A TIMEPIECE MOVEMENT, IN PARTICULAR A CHRONOGRAPH MECHANISM
#2BISTABLE TIMEPIECE CONTROL MECHANISM
#3BISTABLE TIMEPIECE CONTROL MECHANISM
#4Chronograph repeater mechanism with safety function
#5Watch comprising a transmission device between a control member and the movement
#6Timepiece comprising a device for switching a timekeeping mechanism
#7Timepiece comprising a device for switching a mechanism of said timepiece
#8Split-seconds device with epicycloidal train for a timepiece
#9Chronograph mechanism and timepiece comprising the chronograph mechanism
#10Time measurement device
#11Tourbillon
#12Metal structure, method of manufacturing metal structure, spring component, chronograph coupling lever for timepiece, and timepiece
#13Chronograph mechanism with a column wheel and timepiece movement including the same
#14Quick corrector for a time related magnitude indicator for a timepiece
#15Chronograph control device
#16Depth measuring device for watches, and watches incorporating such a measuring device
#17Display device for a watch
#18Chronograph mechanism
#19Stopwatch and watch