Sam,
This guy supplies gear kits that he says will repair the "(Intermatic
WG-1420, WG-1420-2 and WG-1420-3) and also the european Intermatic
WG-5094". $15 for the armature and idler gear. Here's the URL for a
picture of the gears:

http://www.stuartsinger.com/Ball%20C...Pics/Gears.jpg

and the main page:

http://www.stuartsinger.com/ballcloc...ome%20Assembly

Those ball clocks look cool I might have to buy one.

Richard