CASE  .  Chrome plated,  monoblock,  33mm .

BACK  .  Screw,  steel .

                 It usually only reads the S/N . On some watches also “ fond acier inoxidable “

MOVEMENT  .  Moeris  “ Grand Prix 10 1/2 C “.

                          The brand name  and Cal. type are on the wheel bridge while 

                          “ Bruchsicher “ is punched on the ratchet wheel .

PUNCHING  .  D. H.  only

                       Letters are larger ( 2 mm ) than numbers ( 1,5 mm ).

S/N  .  7  digits . Considering the registered watches ( 55 ) ,

            the range may be  2555XXX   /   2897XXX .

NOTE : S/Ns are purely indicative .