Waltham also made this smaller one in the 70s
Waltham Escape Compass
Handy size for hiding about the person. Tritium treated cardinal points.
Specifications:
Material: O.D. Green painted brass
Size: 3/4" diameter
Crystal: Glass w/ lubber line
Needle: jewelled card w/ tritium luminous points
Graduations: Cardinal and intercardinal points only
Weight: 1/8 oz.
Stop: None
Date: 1973
Markings: WCC (Waltham Clock Company) on card
pm- 147 0.4 mc
Feb. 1973
37-10913-02 (on reverse)
Manufacturer: Waltham Clock Company
Estimated value: $20 - 25