a beautiful very rare mechanical cartier reverso dual time zone from the late 1970’s. I’d take this over the original jaeger le coultre version for its rarity… anyday. beautiful half-moon shaped lugs. one side has a white dial with black roman numbers. the other side has a champagne dial with black roman numbers. look closely the crowns are hidden on the top and bottom of the body of the watch. both movements are “manual wind” movements. if you come across one it would be around +17K and probably a lucky find by dd