OP XXX

Automatic mechanical OP XXX calibre, 13¼ lignes, 25 jewels. Glucydur® balance, 28,800 alternations/hour. Incabloc® anti-shock device. Power reserve 50 hours. 170 components. Functions: hours, minutes, small seconds, date. This movement is accompanied by the Chronometer Certificate issued by the Contrôle Officiel Suisse des Chronomètres (C.O.S.C.)