Hello everyone, I have a Seiko 7A28-7020, sadly the top of the "Step Rotor" has broken off. The Seiko Part Nr. is 4146725. Now i try to find a replacement. Unfortunately, my search has been unsuccessful so far, I can't find exactly this part anywhere. Do any of you have any tips or know where I can buy this part? I would be very grateful for any help. Thanks.
Have you considered buying a donor watch? It might be the easier option instead of going on the hunt for 40 year old parts on their own.