This is a genuine triple crown chronograph! Someone decided that two crowns would make nicer pushers.. Watch is not running and needs some love.
It’s also impressive how all 3 crowns are different.
The dial is patinated and a little dirty, but overall good original condition.
Well it made me laugh.
With the dial removed you can see the setting/winding mechanism.
I start taking the movement apart. It’s complete except the minute recorder spring.
The movement reminds me of the 861 design, but uses more wire springs.
Plenty of dirt lying around.
Here you can see the gear train layout.
The old mainspring.
The movement has been cleaned and I’m seeing the balance moves freely after fitting the shock jewels.
I fit a new mainspring in the barrel.
The clean gear train goes back into the movement.
Here you can see the setting/winding gears.
Base movement almost back together.
The movement starts ticking straight away after fitting the balance.
When there is too much power in the gear-train the watch starts banking.
The solution is a weaker mainspring.
The chronograph layers comes together.
The minute recorder spring was missing so I made a new one.
Movement back together.
Base movement ready for dial and hands.
Dial has cleaned up very well and looks very nice.
Movement back in the case looking great. The case has been restored at Replaiteit in Canada.
Movement also has a dust cover. Entertaining as the three crowns were, a set of new pushers are much more practical;)
Now that just looks fantastic!
I very much like the golden brown patina in the GP case!