I received a Submariner with the clone 3135 movement and when I tried to adjust the time and date, the stem came completely out of the watch.
I took it to my friendly watch repair guy and he took the watch apart to find the problem. Apparently, the groove on the stem has too much slope to hold the adjustment in place. When he tried to increase the spring pressure, it just bent instead of holding and engaging the gears. Is this a problem with this particular movement or is there a design issue here?
Orca1993