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By Michael1962 · Posted
Sorry. New to this. I was on the page where the stuff was showing, but it looks like the link takes you to the top of the group. If you scroll down in Geelong Online Garage Sales, you might see it. I will also try to download the pictures and post them. -
By WatchMaker · Posted
No. These are super simple. Probably a Rego 143 or similar. The pusher literally just stops/frees the balance wheel. -
Did you put the movement retaining ring in, to keep the movement centered in the case?
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JohnC 56
Hi all,
I have an old Bulova that has been on and off my workbench for a few months now - it was one of the first watches I attempted to service. The original staff was bad, so I ordered another movement of the same caliber (8AH, or ETA 1000) in the hope of transferring the balance complete. After receiving the parts movement, I then completely fouled up the hairspring on the "new" balance, due to a tragic combination of large overlapping centre wheel and the softness of old Bulova hairsprings (I now never dangle balance wheels from the cock - a harsh lesson learned).
I've just got a staking set, which makes transferring balance springs pretty painless. The solution to my problem seemed obvious - put the old spring on the new balance. I did it, and it's running well with decent amplitude and minimal beat error. The problem is that the watch is running 2 mins slow with the regulator as far to the "fast" position as it can go.
I was aware of the risk here, as I know hairsprings are vibrated to specific balance wheels. However, I thought it wouldn't be a huge problem given that the watches are the same caliber. How wrong I was! My instinct is that the new wheel is too heavy for the old spring, causing the slower frequency. Is there anything relatively painless I can do to address this problem, or am I out of luck, barring getting yet another donor movement? I really just bought this watch for practice, and cosmetically it's a mess. I don't see the point in dumping more money in. Hoping there is a quick fix, but prepared to live with a slow watch a few times a month.
Thanks in advance,
John
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