This one is a little different to my others,
The case is US made and the watch contains US components. The keypad has a rough almost bakelite texture and the back has no serial number! The original mineral had no name on it, not even a residue and the it had not been polished. It was very chipped and worn but not buffed. I have replaced the crystal with one of my hand made armored plexiglass ones.
Is this a prototype, by the way, the orignal module just exhibits a '0' and is missing a battery to ground tab so it has been replaced by a spare module. The 4 raised keys have a much lower height than the standard Swiss made, serial number units I have and have seen.
Cheers, boy I love these!!!!
Geoff