EP 0161438 B1 19881109 - TIME PIECE COMPRISING AT LEAST A CHRONOGRAPH FUNCTION
Title (en)
TIME PIECE COMPRISING AT LEAST A CHRONOGRAPH FUNCTION
Publication
Application
Priority
CH 155984 A 19840328
Abstract (en)
[origin: US4655606A] The timepiece of the invention includes at least a seconds hand arranged to respond to a chronograph mechanism. It comprises a single motor which receives at least two pulses per second so as to cause the seconds hand to advance by at least two steps per second. The system as disclosed enables an improvement in readability of the precision of time intervals on the one hand and on the other hand assures certain operation of the chronograph while using a stepping motor dimensioned to drive a simple timekeeper.
IPC 1-7
IPC 8 full level
G04C 3/00 (2006.01); B60N 2/02 (2006.01); B60N 2/90 (2018.01); G04C 3/14 (2006.01); G04F 8/00 (2006.01); G04F 8/02 (2006.01)
CPC (source: EP US)
G04C 3/14 (2013.01 - EP US); G04F 8/003 (2013.01 - EP US)
Citation (examination)
GB 2028545 A 19800305 - SUWA SEIKOSHA KK
Designated contracting state (EPC)
DE FR GB
DOCDB simple family (publication)
EP 0161438 A1 19851121; EP 0161438 B1 19881109; CH 658567G A3 19861128; DE 3566174 D1 19881215; HK 121493 A 19931112; JP H0682591 U 19941125; JP S60218092 A 19851031; US 4655606 A 19870407
DOCDB simple family (application)
EP 85103618 A 19850327; CH 155984 A 19840328; DE 3566174 T 19850327; HK 121493 A 19931104; JP 6221585 A 19850328; JP 8677091 U 19910930; US 71080385 A 19850312