Description:  1929 Diana

Model Name

Diana

Case Date

Unknown

Case Serial

None

Signature Locations

Inside case, movement, dial

Case Signature Format

"Bulova"

Movement

5AP, 15 Jewels, 4 Adjustments, Swiss

Movement Date Code

1929

Movement Serial

19641

Case Material Description

14K (solid white gold with sapphires)

Case Dimensions

35.5mm x 14mm without crown

Case Type

Single hinged, tonneau

Crystal Specifications

14.5mm x 10.8mm, tonneau

Other Details

1924 patent date inside case

Each end of the bezel includes two very dark sapphires in a comma shape.   The strap also appears to have two inset sapphires

NOTES:  This watch is yet another example of where the case serial number cannot be relied upon as a date indicator in a solid gold model.  In this instance, there is no case serial number at all.

 

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1929 Diana

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