Rare 3/0s 7J Hampden movement c1906

This is a Hunter, stem wound / lever set – the 3/0 is about as small as American movements go

The movement has a good balance and spring

Movement – the nickel ¾ plate movement has a lever escapement, micrometer regulator and is decorated with fish scale damascening. The movement is signed “Canton, O. Diadem 2294210. The movement is in 90% mint condition

Dial – the white enamel dial has a full set of blue steel hands and is signed “Hampden”. The dial is in 100% mint condition

The movement measures 27.7mm x 5.7mm