Bulova 1937 Treasurer
Outside case back markings: B-10K GOLD FILLED (on "top side") 7142555 (on "bottom side") (no date code on back)
Inside case back markings: BULOVA FIFTH AVE NEW YORK
Movement: Adjusted 6AE 17 jewels BULOVA WATCH CO. U.S.A. (square 1936 date symbol)
Dial: White w/ raised/applied gold gilt Arabic numerals and BULOVA, printed outside minute track, gold gilt modern hands.
Case measurements: 17.6mm x 43.2mm apx without crown (digital calibers need battery, so I'm reading the analog graduations)
Dial measurements: 15.7mm x 29.85mm apx
Lug gap: 12.3mm apx at holes. Slightly tapered narrower towards bezel.
Case and crystal measurements are consistent w/ Treasurer on site and at NOVA's website.
Ad below from 1936. Full ad seen here: http://www.mybulova.com/sites/default/files/vintage_ads/bulova-ad-1936-1.jpg