Yema Meangraf Sous Marine (1968/1970)
Ref. 631014 | Cal. FE 3611 Automatic | Diameter 38mm
Just like the Yema Rallygraf chronograph this Yema Meangraf was a model aimed at the target group automotive sport fans. It has both a Tachymeter bezel and an inner "temps ecoulé" bezel to measure the average speed. It came in the colors yellow/orange, red and green.
Sous Marine on the dial means that the watch is waterproof. It also is the name of the case brand. Just like Caribean, Squale and EPSA they branded the dials of the watches which used their cases.