Unified Panerai SUBMERSIBLE BMG-TECH ─ 47 mm Submersible Series Metal Glass Watch with an original imported automatic mechanical movement made of Panerai's new material BMG-TECH, which has ultra-high toughness and scratch resistance .Each watch is unique. The round scales and hollow hands are highly recognizable, and are covered with Super-LumiNova super luminous coating to ensure that the time information can be read clearly in a dark environment.