Visual Description
The Ref. 0901 is the ladies' Santos in a single metal. Piasa and Heritage give the rectangular case as 24 × 35 mm, and Bonhams records eight screws on the bezel and eight on the back. The dial is white or cream, with black Roman numerals and an inner minute track, and on the example Bonhams sold the hidden Cartier signature sits at X. The hands are blued steel swords, under a sapphire crystal. The bracelet is the Santos screw-link bracelet with a folding clasp, in 18k gold on gold examples.
Reference Significance
The 0901 is the single-metal companion to the steel and gold Ref. 0902, the ladies' automatic Santos with an 18k gold bezel. The large models divide the same way: the Ref. 2960 is one metal throughout, and the Ref. 2961 is steel and gold.
Case numbers show the metal. Steel 0901s are numbered from 0901, as on the examples Auktionshaus Stahl sold and a French house offered in 2024, while the gold examples Bonhams, Piasa and Heritage sold are numbered from 80901. Monaco Legend catalogs a gold example as Reference 901, and WannaBuyAWatch lists one as ref 0901.
Historical Context
Dated examples run from guarantee cards of 1984, on a steel watch Auktionshaus Stahl sold and a gold one Heritage sold, to gold examples that Bonhams dates to about 1990 and Monaco Legend to the 1990s. The start and end of production are not documented.
What to Look For
Metal: The case, bezel and bracelet should be one metal. A steel case with a gold bezel is the 0902.
Case number: Steel examples are numbered from 0901; gold examples carry case numbers beginning 80901.
Movement: It should be automatic, wind and keep time. Catalogs give the ETA 2670 and a cal. 017, so look at the movement itself.
Bracelet and screws: Look for stretch in the screw-link bracelet, check that the folding clasp closes firmly, and check that the bezel screws are all present, with matching heads.
Dial: On a stone dial or a diamond-set bracelet, ask whether Cartier fitted it; Monaco Legend's lapis lazuli example came on a Cartier gold and diamond bracelet.

