Description:  1929 Diana

Model Name


Case Date


Case Serial


Signature Locations

Inside case, movement, dial

Case Signature Format



5AP, 15 Jewels, 4 Adjustments, Swiss

Movement Date Code


Movement Serial


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.


To view all ladies' models in my collection, visit Ladies' Models.

1929 Diana