Elgin Grade 97 Details

This watch has a handmade replacement collet on the hairspring.  It's very nice work too!

This is an Elgin grade 97, 18 size, 7 jewel, movement, made about 1891.

It has the earlier tangential  lever escapement, also called an English lever.  This was superseded by the more stable Swiss style, or perpendicular, lever design.