Help with Seiko Bell Matic alarm!
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By EtherJunky · Posted
I appreciate that I'm responding to a thread from over a month ago, and you're unlikely to have sat in front of your screen twiddling your fingers waiting for a response and probably found a solution already (like poking at it gently to see what happens), but I found a parts listing with a load of codes that maybe useful: https://www.emmywatch.com/db/movement/bulova--5at/ If that link doesn't work, I grabbed a screenshot of the full page too -
So, here we see the blued screws again! The blued screws I showed look in my opinion very cheap and not pretty. Certainly not what I would expect from a genuine Rolex. The blued screws in you picture look nicer. But again, Rolex don't use blued screws, or do they? Are you sure it's not a Chinese super clone or did you or someone else replace the screws? In my opinion it makes sense that Rolex wouldn't use blued screws, especially since they never (exception being the new Land-Dweller) expose the movement through a see through case back and even more so as these screws are fitted under the dial. The original DNA of Rolex is utility, not luxury. So, are our movements fake?
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Hmm... In the picture, it looks like the spring pushes on the side of the pinion. In the Vostok 24xx movements, the spring pushes down on top of the pinion. That is, the Vostok pinion is not visible from above as it is in your picture. Perhaps the Omega spring presses on a round tab fitted on the arbor just under the pinion? EDIT: Had a better look at the following posts, and the answer is yes!
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By Neverenoughwatches · Posted
You are just using the calipers as a datum stick...though adjustable. You could actually using anything to fit the space , that will give you a guide to work to. A thin piece of metal filed to size, a staight piece of old mainspring. A scratch mark on his thumbnail perhaps. Reshaping one of the steady pins , will result in all of the balance components being in a slightly different place. The impulse pin and fork interaction will change.
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