My self winding wrist watch stopped working and it wont rewind when i move my wrist

Self winding watches need motion ( wrist twist) without they can stop. Sometimes just shake your wrist for a few seconds. I purchased a winder box for times I don't wear. ( Amazon)!
it is belt driven winder, rotates watch 5 minutes every hour.

just wind the knob
pulling the knob out changes the time

Pull the winder knob out then push it back in ever so lightly you will feel it click then wind it fwd till you have correct date and other way should give you the day if its one that first needs to be wound backwards before you can pull it out then make shore you rewind it back till it stops or it wont be water tight

Your watch is self winding and will run down (if fully wound) for about 2 days.

This type of watch thrives on use and if not used will stop. To avoid having to re-wind by shaking, it should be worn every day.

(Some makers say that to full wind up their self winding watches, they need to be shaken (gently) aboiut 200 times).

Your watch is a self winding type and does not contain a battery.

To wind it up, swing it from side to side gently for a few minutes (this operates the self winding mechanism).

Self winding watches thrive on use and will only run for 2-3 days if not worn.

Two words: Wind it! When any self-winding (automatic) watch runs down from not wearing it you have to manually wind it to get it going again. Once you've done that the movement of your wrist will cause the self-winding rotor mechanism to keep it running as long as you are reasonably active and wear it everyday. Just wind it about 40 turns and you'll be good to go. Oris is a great watch company and you should enjoy it for many years.

Automatic, or "self-winding" watches get their power from movement of your wrist throughout the day. Unless you're quite active the amount of movement is just about enough to keep it running till the next day. However, if you let the watch run down completely as you did when you were away, there is no reserve power left. The solution is simple: just manually wind the watch and you'll be good to go. To manually wind the watch unscrew the crown as if you were going to set the watch but do not pull it out as would for setting. Wind the watch about 40-50 turns and it will run fine if you wear it every day.

These watches are self winding (mechanical spring), so need to be worn (or gently oscillated) to wind them up.

The catalogue for this watch says it should run for 72 hours when fully wound.

Depending on when the watch was made, it could be that it needs a clean.

Try wearing it for a few days to see if it keeps going.

Self winding watched should not need to be wound as long as they are being worn.

To tell if the self winding mechanism is working, hold the watch close to your ear (hold it vertical, as though it was on your wrist) and rock it gently. You should be able to hear a ratchet operating (a soft clicking noise).

I can't help thinking your suspicion about the mechanism having failed, sound very likely.

I should be self-winding. Put it on your wristing and move around.