(Guarantee reference: GM104)
There is a problem with the winding mechanism. The watch will not wind up fully and therefore only works for a matter of minutes. It happened after I had let the watch completely wind down for a couple of days. I wound it up as normal and I was able to wind it for such a length of time that I thought I had wound it completely. However, I noticed shortly after that it had stopped. Since then I have not been able to wind it so that it will work for over 5-10 minutes (it seems to get stuck before I can wind it up properly).