Mercedes-Benz Ponton Clock Cleaning

To clean the dashboard clock in my 1959 Type 220S Ponton sedan, I used a hexane based contact cleaner with a thin straw applicator.  Spray the mechanism until all the gunk is gone.  Take care not to get it in the coil or in the clock face.  Do this out of doors and make sure the drips run off freely.  In between sprays, open the contact connection on the clock (as if it got a hit of electricity) and while it is ticking, continue to spray with the contact cleaner.  The dirt coming off will be quite visible.  Also, try using a very tiny clean paintbrush to flick off dirt (very gently...maybe not recommended for everyone because an ultra-light touch is needed).  When it is clean, take a tiny hypodermic needle with "luer lock" end (insulin needle size) and remove the needle and fill the syringe with machine (sewing) oil.  Replace the needle by screwing it back on.  Be careful!  Use the smallest amounts of oil on the jewel parts and pivot points.  Pressure will force the oil out of the tip, the plunger does not even need to be depressed.  In fact, the droplets of oil may need to be flicked off as it may be too much.  Recap carefully.  Consider covering the speed adjustment hole with tape to prevent future dirt from getting into the clock.  Put in a new 2W bulb, screw on the white plastic backing, put the three wires back on (brown=ground, red=hot on clock, gray=bulb).  Hook the battery back up and test.  Hopefully it will work.  If not, unhook the battery, wires, and repeat the process?  I cleaned mine and it has been working fine for a few weeks.