Description:  1931 Gladiator

Model Name


Case Date


Case Serial


Signature Locations

Inside case, movement, dial

Case Signature Format

"Bulova Quality"


10AN, 15 Jewels, Unadjusted, Swiss

Movement Date Code


Movement Serial


Case Material Description

None provided (yellow gold filled)

Case Dimensions

36.5mm lug to lug x 26.5mm without crown

(29.5mm without lugs)

Case Type

Single-hinged, rectangular with steps

Crystal Specifications

24.8mm x 16mm, rectangular (G-S X1010)

Other Details


NOTES:  This model has a case and crystal identical in size and shape to my 1931 Gladiator.  I have seen different versions of the Gladiator, including two tone and all yellow/white, so it is not surprising to see this version with no engraving on the bezel.  Perhaps, eventually, ads will turn up that show these variations to be different models, but, for now, the Gladiator seems like a good tentative ID.  Models of the 1930s did tend to come with many variations, all within the same model designation.  I have found that to be a trend that started a little later than this watch, but there appears to be a growing basis for considering it a phenomon of the entire decade.

1931 Gladiator