Love this "Mayan pyramid" Art-Deco stepped case. I serviced the movement myself and it now showing excellent amplitude at full wind (>300 degrees), isochronicity (+/- 5 s over the 200-300 degree range) and delta over 6 positions (+/- 5 s). The dial was serviced by L&S. The difficult part was fitting "strap holders" on this funky case; I used 1.2mm T-bars as shown in the picture below.
In reply to Very nice! One of my 30's by neetstuf-4-u
In reply to Could you elaborate on your by Deafboy
The shield (other symbol) indicates 1939, as well as the s/n starting with a 9. Seeing double stamped movements (1 year apart) isn't uncommon. The movement was initially produced in 1938 and held over into 1939, stamped again and assembled as a 1939 production run watch.