Balance and hairspring. I believe that the hairspring is not original, as I had to shorten it by 1/4 turn to make the clock run fast enough. It may be a hairspring from a 1927 or later Baby Ben, which has a slower beat (14400 instead of 15000 beats per hour).
Mainspring barrels. Alarm "going barrel" on the left. Time "winding barrel" on the right. The time barrel has the normal type of punched curved mainspring hook
Movement date 2 9 20
Movement mounting ring
Movement mounting ring
Matting ring
Matting ring
Matting ring
Inner back and rear leg
Inner back
Inner back and alarm sliding controls
Inside of inner back
Inside of inner back
Bezel
Alarm labels on bezel
Split riveting of pendant
Split riveting of leg
Top ring
Inside of bell back
Back with patents from 1902 to 1911
1902 to 1911 patents
Movement date 2 9 20. Also shows alarm clock and clickspring.
Movement date 2 9 20
Front plate, time gear train, pallets, alarm escape wheel and repeat lever
Front plate, time gear train, pallets, alarm escape wheel and repeat lever
Front plate, time gear train, pallets, alarm escape wheel and repeat lever
