Description:  1938 Breton

Model Name


Case Date


Case Serial


Signature Locations

Inside case, outside case, movement, dial

Case Signature Format

Inside - "Bulova, Fifth Ave, New York"

Outside - "B-"


7AP, 21 Jewels, no adjustments indicated, USA

Movement Date Code


Case Material Description

10K Gold Filled (yellow)

Case Dimensions

38.5mm lug to lug x 21.4mm without crown

Case Type

Snap back, rectangular

Crystal Specifications

27.6mm x 15.8mm (G-S MX442)

Other Details


NOTES:  The Breton has been seen with a variety of dials, including all numbers, full index, and with and without the seconds subdial.  The case was also made with and without engraving.  Such variety within the same model designation is typical in the mid-to-late-1930s.  The Breton can be distinguished from other, similar models through case and crystal shape and dimensions.

1938 Breton