Dear John,
This is brilliant, thanks so much. I have an even clearer understanding of these parts now. I will update the images and labels and post again shortly.
As I mentioned in my post above on the reverse of the La Tradition, I am still confused by the workings of the power reserve and the keyless works as well as how the hour & minute hands are getting their information from the gear train – is this via the third wheel, the “main wheel”, or something else that is not visible?! If you have time to provide a dummies explanation I would appreciate it very much.
How do watchmakers get information about movements? Do companies like Breguet, ETA etc. make this available or do they expect all their watches to go back to them for service?
Kind regards
Andrew