Here is text: "The database contains all mechanical timepieces ("chronomètres-mécaniques") submitted under the wristwatch category ("chronomètres-bracelet") to the observatory competition in Neuchatel, Switzerland ("Le Concours chronométrique de l`Observatoire de Neuchâtel") from 1945 to 1967 and that subsequently passed the stringent tests and became certified as an observatory chronometer and therefore received a "Bulletin de Marche" from the observatory." There should be a record of all tested devices though, it may just not be online