This is an extremely rare Marcel & Cie acril case ladies watch. The watch is from the 1950s or 1960s. The face of the watch is green with a clear acril (plastic) skelton case revealing movement in back. The original 16mm band with a 12mm silver buckle is also clear. Hand wind. Swiss made / Swiss movement. The watch does not work but may be repairable by a professional. What a gem!