The Stone Mountain or crystal plate watch is very unique and very very rare. The watches were never mass produced. The upper plates were made out of stone that was from Mexico.

Does any one have any more information on these watches?
If anyone has a stone mountain please post some pictures, we would love to see !

Francesco

Just a pic I found on the internet

Another

No information on them but I have held 2 different one in my hands before and they are very unique.

Here is a smaller one I held in hand and fetched $38,000 at auction I also have pictures of a 16s model 72 one I held in hand when I retreive pictures off my crashed computers hard drive

Thanks Robert !