Seiko 5106-9000 Presmatic
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So based on the 10.5 would make me think a Frey A but could also be one of these if you can measure the staff. These are all the Freco Ronda Staffs so expect it's a 1 1086, 1087 or 1088 -
Neverenoughwatches, you advise against winding the ratchet wheel with a screwdriver. Why not? -
I measure the movement as 23.42mm diameter. I guess that'd be called 10.5'''. I don't currently have access to bestfit. I believe this watch is from 1920 or 1921. That predates Bulova's stamping of a symbol to represent year of manufacture and may predate their systematic movement codes. In any case, there is no movement number stamped on it. It was based on a Frey ebauche, but so far knowing that hasn't helped me. -
That makes sense. Thanks. And I will now always remember checking that while I assemble the watch. This is where I’m at now. Here’s is an update on the watch. I haven’t worked on the watch since, but I seems like the watch is now running perfect if he don’t wind it fully up. If he just wind it almost fully up, it doesn’t seem to stop.. and it stops after some time if he wind it fully up. -
Thank you. I have found John Vernon's "Grandfather Clock Maintenance Manual" very helpful in explaining the basics. Unfortunately I have now discovered that the fly has a broken pivot which has rather set me back. I will have to try to source one from somewhere.
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