Could someone advise on winders for this

[Melanieds]

Hi, this is a watch I own and for some reason I can no longer open the case. I need to buy a new winder (it fell out) - I think it is a 701 movement based on old photos. What winder would it need?

 

[Melanieds]

 

[Melanieds]

Bump!

 

[DaveK]

I believe what you need is a watchmaker to do a service and install a new crown and stem as part of that service. If you don’t have a watchmaker, let us know whereabouts you are and someone may have a recommendation. If that’s what you want, then edit your post’s title and you will get the help you need