Bulova 1937 President
21 jewel 6AE USA movement with arrow date stamp. Case has very thin scroll work to the left and right of crystal. Case is gold filled and slightly curved. Inside case back reads Bulova New York. Case back reads the serial numbers between the bottom lugs and B-10K Gold Filled between the upper lugs. Band is a Benrus expandable 1/20-10k GF w/ stainless steel bottoms.
Research led me to two contenders; Treasurer or President. I'm leaning towards President because of the 21 jewel movement.
Update: Case length to ends of lugs: 1 3/4" approx 44.45mm Case width: 3/4" approx 19.05mm Crystal length: 1" approx 25.4mm Crystal width: 9/16" approx 14.29mm