Looking for some advice here. Just got in Gigandet regatta watch and all works well...except the sweep second hand resets at just a mm past 12 o'clock and when the chronograph is activated...the sweep second hand stops just shy of 12 o'clock. If I tap the crystal...sometimes it jolts forward. Looking at the back, the gear train just stops and kind of jolts and wants to go forward. And if I tap the crystal it does.
I am a pretty good tinkerer,but I don't want to mess up this piece of history.
I am a pretty good tinkerer,but I don't want to mess up this piece of history.

