Elgin Grade 7

The Elgin grade 7 is an older, 18 size, 7 jewel movement.

This example was made about 1883.

This is a key-wind and key-set model.  The same size key that fits the winding arbor also fits the square arbor in the center of the hands.

This is a tangential escapement, also called an English lever.  It is less stable than the Swiss style levers, perpendicular, that Elgin and other American makers moved to later.

Tangential and perpendicular refer to the orientation of the lever to the escape wheel.

An old star wheel has been re-purposed into a washer for a case screw.

The click is rather elegant on these old ones, but it is prone to wear out the shark's toothed wheel.

There was a tooth broken off of the cannon pinion, visible here.  That's a shame, those parts are getting hard to find.