This is an average quality wrist watch movement most likely from the 70's. Good time keepers if timed properly. That, on the other hand, could be tricky since the regulator is not very accurate. Regards, Krister.
Posts: 375 | Location: Backaryd, Sweden | Registered: April 19, 2009
In answer to your question, USUALLY . . . these little swiss movements have a stem locking part that is screwed down to a detent in the winding stem and which (ugh ) have to be very carefully manipulated because if you mess up, you have to disassemble to watch to reset the locking piece.
That said, if you need to take it out (not to clean it please, these need a watchmaker) pull the winding stem out to "set", loosen the screw that appears to be near it (marked below) no more than 1-1/2 or 2 turns and the stem might come out. If it does not see a watchmaker.
Posts: 6492 | Location: Southern California in the USA | Registered: July 19, 2007