The flat spring in the bracelet died a long time ago, and genuine replacement parts are very expensive. So I made a spring. Seems to work quite well. I've had to make another one since.
The bracelet clasp failed a couple of years ago. Proper parts were about £400, which I thought was ridiculous. I sourced some generic parts that fitted perfectly, and were actually titanium. The original was steel. A bit of filing and the fit was perfect.
So now, the watch was original, but the bracelet clasp was different parts.
The last battery change, though became a service (as it hadn't been serviced for a while, so obviously needed it). So I had a service done and the watch came back, after I declined other replacements and work. All seemed well, then I noticed that the movement was displaying things it never did before. I suspected that the movement had been changed, and indeed, and email confirmed this. The back of the case had also been replaced as that is necessary if the movement is changed. This resulted in an anorexic serial number being engraved on the case back, rather than the sturdy punched one I originally had.
Anyway all was well until this happened:
Yes, the minute hand fell off. I have already decided to do my own battery changes so I had purchased tools to open the case and remove the hands. I also have the tools and parts necessary to service the movement if I need to. So I popped the case back off and put the minute hand back on.
It wasn't very traumatic, as I now feel that the watch isn't my original one, as the bracelet clasp, case back and movement aren't the original. I'm left with bracelet case and crystal as original. It's not my watch any more.