Description:  1951 Thayer

Model Name


Case Date


Case Serial


Signature Locations

Inside case, outside case, movement, dial, crown

Case Signature Format

Inside - "Bulova, New York"

Outside - "Bulova"


10BRC, 17 Jewels, no adjustments indicated

Movement Date Code


Case Material Description

10K Rolled Gold Plate Bezel

Stainless Back

Case Dimensions

39mm lug to lug x 30.5mm without crown

Case Type

Snap back, round

Crystal Specifications

26mm, round

Other Details


NOTES:  It is not entirely clear if/when this model was called the Duo-Wind versus the Thayer, or if the two models are exactly the same.  The cases look the same but the suggestion has been made that one is larger than the other.  I cannot verify that claim.  The available Duo-Wind advertisement shows neither "Duo-Wind" nor "Self Winding" on the dial.  The avaiable Thayer ads show "Duo Wind" and "Self-Winding" on the dial at different points in time.  Based on those ads, I believe this model to be a Thayer.

1951 Thayer