I have found the correct material to replace the lens (or jewel) in your 51 52 Maar clock.
I am only able to replace the Jewel or lens for the clock at this time.. A limited number of lenses will be available, at a very very good price. contact me for more info
IN addition I am interested in buying ONE additional Maar clock, for my own uses . anyone have an extra? thanks sawzall
Edited by sawzall2, 28 September 2011 - 07:20 AM.