I have come across this watch and am having difficulty finding any information about it. Although not clear on the picture, the caseback is signed "WALDAN".
As can be seen from the picture of the movement, its Zenith EP.
I would appreciate any insights into the history, rarity & value of this watch.
The Chronograph Business in Switzerland
http://s1270.photobucket.com/albums/jj605/aroan1/?action=view¤t=UlysseNardinElPrimero2.jpg#!oZZ2QQc urrentZZhttp%3A%2F%2Fs1270.photobucket.com%2Falbum s%2Fjj605%2Faroan1%2F%3Faction%3Dview%26current%3D UlyssenardinElPrimero1.jpg