Yes, its the same I thought.
I have another steam-crown from a Myiota quartz. This one is how it should be. Threaded into the crown.
Tomorrow I'll try with this one.
I'm trying to learn how to change the steam, because I bought a SSD (the new SD) but it have some problems. All the batch probably...I'm not the first with this kind of problem.
My tube its not so bad threaded (its not so difficult to screw back the crown), but the steam its too damn short.
So, when I unscrew the crown I ear the "click click" sound.
The winding pinion it's turning anti-clockwise "engaging" (slipping) the wig-wag pinion. That's what I guess! I'm only a noob
I think that this is not good for the toothing. So, if I change the steam with a longer one it will be better.
Am I right?