Watch/stopwatch has analogue display, counters with heart reset engaged by pushbutton and one reset heart displaced from the associated counter to a supplementary wheel engaged at unit ratio

摘要

The stopwatch has hours, minutes and seconds counters (20,30,40) which are driven through a seconds wheel (39) from a push button clutch and the main second movement. The hours and minutes counters (20,30) have heart type reset mechanisms (21,31) on their wheels (19,29) but the seconds counter (40) is reset to zero by a heart mechanism (41) on a supplementary wheel (37) in unit ratio with the seconds wheel (39)