Very rare , very large (49mm lug to lug tip) Memovox alarm watch.
Has a very special two color processed dial that gives it a dark plum/blue look.Signer made these dials for JLC. (You know the same company back then that made dials for Rolex's legendary Submariners and Daytonas)
Highly desirable and has the high-beat 916 caliber. In all original , and mint condition.