Elgin Serial Number Lookup


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Job Number 220084

Here's is a grade 320 Elgin, 0 size, 7 jewels, made about 1912.
This movement's main problem was that the hairspring kinked and bent in the regulator pins. Here's a before and after of my first pass at fixing that. After this I put the assembly in the watch and made several more adjustments.

These old springs are soft and touchy. They'll kink if you breath on them. Making corrections is a delicate process, one tiny move at a time.

This is the initial pass at the repair.
Running nicely...

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Job Number 220082

This 18 size Elgin includes a latching cam that can lock the movement in winding mode to facilitate adjustment of the bare movement without the case. A "negative setting" movement like this goes into setting mode when removed from the case making rate adjustment problematic. These little parts are often missing from these watches.

The movement is a grade 208, 18 size, 7 jewels, made about 1900.

The first full wind after assembly broke the mainspring. Well better now than after it's sent home.



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Job Number 220081

This one is a grade 247, 16 size, 15 jewels, made about 1900. It's an example of one of Elgin's ever popular 3 fingered bridge, or "bridged", models.
The "fingers" are actually one part. This is common on watch movements of this style.



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Job Number 220079

This project is a grade 364, 12 size, 15 jewels, made about 1913.
The threads for the case back were severely damaged. With various techniques I was able to slowly improve the two really bad spots enough to get the back very close to fully back on. It'll be OK I used a very pointed hard steel graver and a very thin file.

The back had been pried off, apparently at a prior repair shop.

I had to obtain the staff the movement needs and wait for it to arrive. It's not a rare part but they are getting more expensive. I was surprised that I didn't have any more on hand. That's happening more and more now. Good time to slow down on watch work. Parts are only going to be a bigger problem going forward.

Replacing the broken balance staff...
The old staff, removed...
Somehow the balance wheel was pretty badly damaged and way out of flat. It was so bad I didn't need the calipers for a first pass at it. Much better now of course, but it's slow work.
Replacing the roller jewel...
A quick banking adjustment and it's running nicely...

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Job Number 220077

This one is a grade 315, 12 size, 15 jewels, made about 1926.

There was a lot of staining on the plates. Many watches have this. I have always assumed it was from tobacco smoke. 
The first pass at cleaning takes quite a bit off but hand cleaning is called for in these cases.

The movement needed a balance staff. The upper pivot was broken. Funny thing though... The staff that's on here currently is not an Elgin part. It's has a hub more like a European make. This is the underside.

There's nothing at all wrong with making things work with what one has on hand, if the work is done properly. There's an old ethical rule in watchmaking; never alter existing parts to fit a replacement part. The end shake looks OK here, but hopefully the roller table and hairspring were not altered to work with this staff.
The old staff came off easily. The steel was softer than that of a factory part. I also had to reduce the pivot sizes, both upper and lower, on the replacement staff but everything came together fine without further adjustments. 
The old staff and the snapped off remains of the hub, which forms a little washer. I always save these. You never know...



After adjustments to the rate and beat, new dial washer, balance staff, crystal and it ran well.

Job Number 220075

This is a grade 315, 12 size, 15 jewels, made about 1924.
I found weirdly specific, highly localized rust under the click on this movement. No damage though, it will clean up just fine. The rest of the movement is completely clean. You never know what you'll find in a watch.

There's a whole lot of teeth broken off this main wheel. The ratchet wheel is fine however.


The setting cam was replaced to fix a winding/setting mode issue, and a dial washer added, in addition to a new main wheel.

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