I've had one of these nice clocks on board for years now:

http://www.bey-berk.com/sq508/

The quartz electric works wouldn't keep going for more than a day before it
stopped. New battery didn't do the trick. Cleaning contacts didn't do the
trick. Making sure hands were free to move didn't do the trick.

So I contacted the manufacturer at the above link and asked for a quote to fix
it. Total cost NINETY dollars which included parts, labor and shipping.

So, being a tightwad, I searched for clock works on the Internet and found the
same one for 13 dollars. An outfit called clockworks dot com. It even came
with two new hands for free as they said older hands might not fit the newer
movement. So I ordered it last week thinking, "Can't hardly lose."

It arrived today and I installed it. The original hour hand fit just fine but
the original minute hand didn't as it has an round friction contact instead of
an oval contact as required by the new movement. So I used the original hour
hand, the new minute hand and the original second hand. It took about five
minutes to assemble the new movement to the clock face. I installed the AA
battery and it fired right up and is ticking along just fine now.

Total cost including shipping $19.99. Hoo Rah!!!

--
Sir Gregory