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Hello All, I am new to this forum but I did look around it a bit when I was looking into watch tools and getting started. I have acquired a few Seiko 7009 movements to get some practice working with Seiko before I tackle a Seiko Sea Lion M44 that I bought. However, since I have several movements, I thought it would be nice to piece together two watches with the two cases I have. I am having some issue sourcing/identifying the case components. In the attached image you can see two cases. The numbers on them are 7009-875J (left) and 7009-8599 (right). For the 875J, I believe the crystal and the O-ring need to both be replaced but I cannot find a suitable replacement on CousinsUK. The closest I have found was for a 7009-8750 case, which has a chrome ring that I did not find when I took the crystal off this case. For the 8599 case, I found the XAC311.652 Sternkreuz, Seiko 310T49ANS0 on CousinsUK which seems like a fitting replacement. Additionally, I have several movements, but I do not have the movement holder rings used to settle the movement into the case. I saw in a post by @Waggy ( ) that he has created CAD files for the movement rings, but I was wondering if those rings are universal for all 7009 movement and case combinations. Even if those work, I do not have a 3D printer, so I was wondering if there is anywhere else I could source them.

Hello everyone, I'm trying to restore my father's old Seiko 2260-5510 quartz. I'm not really skilled on Seiko and I'm not able to find any info on bezel and case-back gaskets (they are shaped). They really need to be substituted. Where can I find parts numbers? Are there any catalogue online? Are there any non-Seiko equivalents if original parts are not available? Thank you very very much in advance. Regards.

Hi guys, I know I’ve asked this in a previous thread but that thread got into different subjects etc and I think one of questions was lost, my question is this, I’ve the part numbers etc for the rubber flat caseback gasket and the crown gasket, but I’m unsure about the flat white silicone/plastic gasket that was sitting in the case, I’ve attached a photo for you to see the item in question. If some one could possibly help me with the part number for this I would be very greatful, my basket at cousins is filling up and I don’t want to order the incorrect parts