Visual Description
The Ref. 78225 is the Santos Dumont in two golds: an 18k white gold case with an 18k yellow gold bezel. Amsterdam Vintage Watches measures it at 25 × 36 mm and Bachmann & Scher at 26 × 36 mm. The white dial carries black Roman numerals and is signed Paris, the hands are blued steel swords, and the crown is set with a blue sapphire cabochon. Dealers have sold it on leather straps with a Cartier yellow gold folding clasp or a Cartier gold pin buckle.
Reference Significance
Bulang & Sons, Bachmann & Scher and Amsterdam Vintage Watches all call the 78225 Deux Ors, for its two golds. It shares its size, Paris dial and hand-wound movement with the yellow gold Ref. 78097, but the movement differs: Bulang & Sons and Bachmann & Scher give an ETA 2512 base, where the 78097 runs on the Cartier Cal. 78-1.
The Ref. 96061 reverses the metals, with a yellow gold case and a white gold bezel, on the ultra-thin Cal. 21.
Historical Context
Bachmann & Scher gives 1977 as the year of production of its example, and Bulang & Sons and Amsterdam Vintage Watches date theirs to the 1970s. No source dates an example later, and the start and end of production are not documented.
What to Look For
Metals: The case should be white gold and the bezel yellow gold. Every 78225 documented has this combination.
Case number: It should begin 78225, such as 782250039 on Hindman's example.
Dial: White with black Roman numerals and a Paris signature. Hindman noted light crazing on one dial; ask whether the dial is original.
Movement: It should be hand-wound and run; dealers give an ETA 2512 base. Ask for a photograph of the movement.


