quoll
March 30th, 2006, 00:30
I have just aquired an old automatic Roamer with the letters 'Pm' beneath 'Swiss Made' at the foot of the dial. Can anyone confirm what this stands for? I have a suspicion that it might be to indicate that Promethium 147 was used for the lume, but I am not sure.
Ray MacDonald
March 30th, 2006, 15:23
I have just aquired an old automatic Roamer with the letters 'Pm' beneath 'Swiss Made' at the foot of the dial. Can anyone confirm what this stands for? I have a suspicion that it might be to indicate that Promethium 147 was used for the lume, but I am not sure.
Yes I believe this is correct.