If the '69 is like the '68s, the problem is possibly a burned out coil. When you open it you may see that the coil is fried. The clocks are mechanical and wound about once a minute by a closing of contacts putting 12v on the coil. Mine is on its 3rd or 4th coil in its 45 years.
If you decide to spend the money, the repair solution is sending it in to a place like The Clock Works http://www.clockwks.com for original parts or getting a quartz do-it-yourself conversion.
I believe the observable difference is the original mechanical second hand steps along each second where the quarz is said to move smoothly.
3 or 4 to date. Wow! This one had stopped at some pint and if you took the tiny spring loaded knob and let it snap back into position the clock would start again. It progressively got worse until it came to complete stop five or so years ago. This is hwy I asked if it was an oiling problem? My guess is that now that is has been stopped the coil is probably toast but who knows?
Maybe I will just document how I take it apart and see if some 3and1 oil will get it going again?
