American Waltham 1899 Model

This is an American Waltham 16 size, 17 jewels, 1899 model, grade 625.

This is the shipper spring, clamp and screw.

When the stem is pushed in, the shipper mechanism causes the clutch to slide outward (down in the photo) and engage the winding side.

In this photo the clutch in inward, engaging setting.

Here is the shipper held in place with the clamp.

Here is a close up view of the complete train from the mainspring barrel through to the escape wheel.

This movement's bridged design gives nice visibility to the escape wheel.