Movements
Type 1
Single tootch escape wheel
Type 2
Jewelled mainspring, with C shape bridge
Type 3
"Standard" Potter split plates
Type 4
Repeating
Type 5
More ordinary Swiss straight bridge movement
Type 6
Potter tourbillon
Type 7
Keyless lever
Type 8
Similar to Type 3 but with one piece plate
Type 9
Unusual layout, used in watch No. 14