Swartchild material catalog 1951 Gruen movements

[mikethewatchguy]

I don't recall if I posted the Gruen section of another verstion of the Swartchild catalog or not. Anyway, here's a version I don't recall seeing.

What I found useful/interesting about these pages is that it shows movements of the same size and ones that are nearly identical also. For example, the 435 & 440 movements are the same size, share materials, etc. All of the info is in the various Gruen produced parts catalogs, but it's not laid out as simple as these pages.

Like other material catalogs, it's handy for fingerprinting a movement to determine the caliber.

It helped me see how one movement model replaced another with a similar or same size.

Some movements, like the 415, are not in the catalog as the catalog was printed in 1951.