Just saw this interesting vintage watch everyone. This Blancpain LIP Fifty Fathoms from the
1950's doesn't say "Fifty Fathoms", or "Blancpain" anywhere on the dial, but just says "LIP"
on it instead, which evidently makes it very rare. ..The Fifty Fathoms were originally created
for military use, and became legendary. They were used by various military services around
the world like the French Navy, Czech, Polish, German federal, Nordic countries, and even
the US Navy (Seal, under water demolition team, Frogmen.)
This information comes from professionalwatches.com. Here is their link to learn more about
the watch which you can visit...http://professionalwatches.com/2012/05/blancpain_lip_milspec_rotomati.html#more