Assertion: speedmaster broad arrow | /r/HasProperty | certified as chronometer
Facets:
value: officially
type: MANNER
Source sentences:
text: The Speedmaster Broad Arrow has a power reserve of 52 hours, a convenient date window at 6 o’clock and has been officially certified as a chronometer by the Contrôle Officiel Suisse des Chronomètres, the COSC.