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The Encyclopedia of Horology

Glossary · Trade

Adjusted

A movement regulated for specified conditions, historically marked on the plate.

Explanation

'Adjusted' on a movement plate certifies that it was regulated beyond simple timing — to positions, temperature, or isochronism, depending on the grade and period. Claims range from honest chronometer-grade work to pure marketing, and some makers stamped 'adjusted' on quite ordinary watches. The claim should be weighed against the maker's reputation and the movement's actual finish.

In the object catalogue

Catalogued objects whose own source record mentions “Adjusted”. The quoted line shows where; it is the seller’s or museum’s wording, not independent verification.