Hi Everybody,
Could anyone identify the ebauche maker whose symbol was 'A' inside the shield, please? The movement in question is 17j with Incabloc in a 0-size nurse's watch by Voltaire c. late 50s/early 60s. Many thanks for any help and best to all for a merry Christmas and prosperous 2011.

Merry Christmas and a Happy New Year to you also Michael, and everyone else too!!! "A" inside a shield is Fabriques dEbauches Reunies, Arogno S.A., Arogno

Hi Tom,
Thank you very much for the helpful info! You give me a starting point for further learning. On the subject, are you aware of a handy-dandy list of ebauche makers' marks anywhere?
Thank you again, Tom, and, once more, best to you and yours for an excellent 2011. Cheers,

hi Michael; there is a list in the watch book that IHC185 sells cheaper than anyone else. If you don't need the book I can copy and send you the list, thanks,Tom