Elgin Grade 62

This is a particularly early Elgin,  grade 62, 18 size, 15 jewels, made about 1867. It is key wind and key set.

The movement is an H. Z. Culver model, with a serial number of just 4 digits.

Here is the Culver engraving, and the serial number.

These blued steel parts make up the ratchet mechanism located on the dial side.

In the next image, we see these parts in place, without the clamp.

Here we can see "Patent Applied for" on the underside of the balance cock. Even just slightly newer Elgins read "Moseley's Patent" here, named for Charles Moseley.

This movement has a single roller balance assembly. The roller jewel is nicely visible in this image,

The dial is marked "National Watch Co", which was the original, short lived, name the company used. It was changed to the "Elgin National Watch Company" fairly quickly because that is just what people were calling it.

Older Elgins will have the "National" dial, if the dial is original.