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Hamilton 992 movement seconds wheel (forth wheel) needed

jdrichard

By jdrichard
in Watch Repairs Help & Advice

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jdrichard Distinguished Member

jdrichard

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Does anyone have a Hamilton 992 movement seconds wheel (forth wheel)? Mine has a broken pivot that I may not be able to repair.a60a42668bb994dcfac0c9596244fe37.jpgThis is before I failed at straightening it and it snapped. Going to try to repivot it but may be completely unsuccessful.

 

 

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jdrichard Distinguished Member

jdrichard

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New evil plan. I will create a sheath over the broken shaft and pivot by drilling a hole in a piece of blued steel, just smaller than the shaft. Then I will friction fit the shaft inside the new steel part. Then I will grave down the long pivot to .24mm for the second hand pivot. 518a0d5713ca61e447bdb2d96919986c.jpg


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MrRoundel Super WRT Addict

MrRoundel

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I always liked those pre 992B 992 movements, especially the ones with the concentric rings on the winding wheels. I don't know why I like those so well, I just do. I don't own one, but I like them. Congrat's on getting it up and running with the JD-pivot.

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      If the metal was twice as thick, it wouldn't snap so easily.  The thickness is governed by the space available so you can't use thicker metal.  If you glued two pieces together, the likelihood of snapping would be reduced.  That's my theory anyway, could be wrong. 
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      there are various approaches to learning watch repair. A lot of people want to jump right in and every single watches something to be repaired restored. But other times like this it's disposable it's here for you to learn and when you're through learning you throw it away. yes you definitely should try this you have a learning movement you need to learn and the best way to learn is by doing something.
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