Watch Parts, Sourcing Parts, Movements, Materials and Lubrication Products
Discussing watch parts, the sourcing of watch parts and movements, and products required to repair and service watch movements
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By Embezelled · Posted
Rear of the Seiko Laurel. As best I can measure it with a caliper, the outer diameter of the balance wheel is 11 mm. -
Photos and dimensions of the balance may help resolve if it's the same as the Marvel. -
By nevenbekriev · Posted
Mike, You have the correct hairspring, only needed is to replace it's collet. So suitable collet is needed. I would not use the one from the new spring, as it can be backup variant. But it is not a problem to source a collet with the proper size (at least if one has piles of movements for parts). -
By nevenbekriev · Posted
Yes, the steel (and iron) solders well, but good flux is needed. This will usually mean acid type of flux, and after soldering, the part must be well washed from the flux, which is usually done with base solutions that will neutralize the acid remains. Actually, I don't know the current state of the wheel, so I am not able to give correct advice. But yes, if needed, new pinion can be cut. No matter what material the cutting wheel is, it is needed to start with soft steel (O1 is OK). After cutting the leaves of the pinion, the work must be hardened and tempered and only then the rest of the work to be done.
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