JUNGHANS MEGA ref. 058/4303.75 Wrist watch JUNGHANS MEGA ref. 058/4303.75 Steel bracelet watch. Round case. Transparent background. White dial with world map print at 6 o'clock. Junghans J101 quartz movement. Original steel bracelet with butterfly buckle. Diameter: 38mm Lug: 20mm Limited edition for the Japanese market.