New Speedmaster Professional Pusher Problem

Hi

I bought a new hesalite moonwatch (311.30.42.30.01.005) this week from a UK authorised dealer. Playing around with the chronograph a day after purchase, the start/stop pusher clicked, activated the chronograph and then... repeated pushes did not cause a click and did not stop the chronograph. I left the watch alone with the chronograph running for an hour or so whilst I contacted the authorised dealer to return the watch. When I went back to the watch and tried pushing the start/stop pusher again (the chronograph still running) the pusher clicked and the chronograph stopped. I was then able to reset the chronograph to zero. Subsequent repeated tests have not caused a re-occurrence of the problem.

I'm not worried too much, as the watch has the five year warranty and I will keep testing the chronograph function over the coming months, but could an expert in how the chronograph functions shed any light on these questions:

1. what could have caused this single failure of the start/stop pusher?
2. whether it is likely to happen again?

Thanks in advance for any help

Martin

Hi. Thanks for the reply, but, no... repeated hard presses and no click!