I'm a watchsmith, but I specialize in Seiko.
I've got a 103, and I love it. However, I'd love to change the rotating ring to the model that has the stainless edge rather than the all-black ring I have now. What options are there to get one of these? Does Sinn sell these parts at all? Does anyone have one around I can talk them out of?
What I have:
The original watch style I'm trying to get to:
The rotating ring style I'm looking for: