gruem curvex

[gary17]

hey

Just got this complete original 1937 gruen curvex even the bracelet came with it. But i cannot find the cal number anywere. Its supposed to be by the balance wheel but i cannot see it any one no any were else the cal bumber may be?

cheers

gary

[WatchMaker]

Looks like a Gruen 311.

The mark may be very small and in an indentation on the plate top-left from the orientation of the movement in your pic.

[gary17]

hey

Thank you.

cheers

gary