Movement: hand-wound mechanical, Panerai OP XI calibre with swan's neck regulator, 16½ lignes, 17 jewels, Côtes de Genève decoration on the bridges. Glucydur® balance with Nivarox® I spring, 21,600 alternations/hour. Incabloc® anti-shock device. Power reserve 56 hours. Chronometer Certificate (C.O.S.C.). Functions: hours, minutes, small seconds. Case: diameter 44 mm, AISI 316L polished steel or ..