Bulova 1947 Mary Lou
1948 Bulova Mary Lou
Case is yellow gold 10KT RGP with stainless back, Bulova New York (stated on inside of caseback), it does not have any date stamps, only the serial No. Movement is a running 17-Jewel 6BK dated 48. Original expansion band does not exist.
Supporting ad from 1948
Is it possible to date the case using the serial number?
-watch has a new owner 5/2014