Oris Diver Sellita sw200 won't wind only "grind"

[Highballn2]

[clockboy]

Maybe the mainspring is broken.

[Nucejoe]

Easiest approach to diagnosis is to remove the winder module, remove the two black screws and lift the module. Show picture.

Otherwise, 

Try winding through ratchet screw with a driver. 

Try releasing power by pushing winding wheel away from ratchet wheel.

Try turning the barrel with pegwood.

Report back your observations, if you will.

Regards   joe

 

[hpekala]

Typical problem with Sellita, broken ratchet wheel.

[DrG]

That looks like a ratchet wheel problem. Perhaps it disengaged from the barrel arbor. Other possibilities would be a broken Mainspring, although that would be less likely if this is a relatively new movement. You have to remove the automatic works to get a better look. I have a video on YouTube on regulating the ETA 2824 (The Sellita SW200 is a clone of the ETA 2824) in which I specifically demonstrate how to remove the automatic works. This will give you a better idea on what's going on. Good luck