Hi, Last week I was very excited to buy a second Speedmaster 125 with a very nice dial, but two days later my excitement fell from high to very low. There is a part missing, a retaining spring or ring that keeps the movement tight in the case. I didn't know how to name it and I don't have the reference of that part. I have looked everywhere to find a reference of that part, but there are only references for movement parts. Thanks to @Archer and @Andy K, I now have the reference of that part and there is one for sale on eBay.com but the seller won't ship to Belgium. So I am looking for an American member willing to help me out. If you feel like it, please PM me to arrange for details. I have added some pics to illustrate my post for all the others... Many thanks. Mounir