This mini-quartz "I" shaft movement is the standard in the industry. It runs on one "AA" battery (included)

To choose the proper shaft length, carefully measure the thickness of the material the movement shaft will go through. If you are using a glass or plastic cover over the movement, make sure you have at least 5mm extra clearance as you will need room for a cap nut. 

For Dials up to 3.2mm, 6.4mm, 9.5mm thick. 

1xbrass washer, 1xmounting nut and a closed hand nut are supplied. 

Movement size: 55mm (length) x55mm (width) x15mm (depth)

THIS MOVEMENT TYPE WILL NOT WORK WITH ROUND "PUSH-ON" MINUTE HANDS
This type does not take seconds hand, unless you already have an open nut.