info wanted , where can i get a Miyota OS20

[uglymug]

hi all, not the most exciting thread i know but if someone could please tell me where i can get a Miyota OS20 movement from. Not the usual calender position of 3 / 4 or 6oclock position, but must be at 12oclock, have searched everywhere but no luck. Even contacted Miyota, but have had no response. Reason for movement, i am rebuilding my fathers old watch to give to a family friend. Many thanks all.............................Ug