Model 4275 belongs to the Model 4100 family. It picks up the gemset bezel of Model 4153 and adds a "line-set" bracelet: a row of brilliant-cut diamonds crosses each link from side to side, passing between the pairs of studs.

The illustrations in the 1981–82 catalogue show non-guilloché dials, punctuated by gemset hour-markers and driven by tritium-free baton-type hands.

As with Model 4153, the small case numbers belong to the Model 4100 series. As a result, despite a very limited production run, a Model 4275 may have a high number, such as 2061.

A study of the Production Register (Registre d’Etablissage) shows a total production of 27 watches sold between 1981 and 1985, of which 15 were in white gold and 12 in yellow gold.

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