Wrist Watch no. ???

Case: Missing Dial: Movement: Provenance: 19?? - CH Meylan, Brassus 2015 - ebay #331488689261, $64.32, 3 Mar 2015, "ANTIQUE C.H. MEYLAN 20 MM LADIES WATCH MOVEMENT, 17 JEWELS 5 ADJUSTMENTS, WITH A ROSE DIAMOND CROWN, NOT WORKING FOR REPAIR. Our watch movement is in Gently Used Condition, and is not working. It needs repair. The movement is unmarked on the dial and the movement itself is marked 17 jewels, 5 adjustments, C.H. Meylan, Brassus, Switzerland. Please view All of the Pictures. It measures 20mm in diameter. The dial is very tarnished and may be silver. The hour hand is missing and the minute hand is bent slightly. The crown has a genuine Rose Cut Diamond set into it that is approximately .15 carats. The movement is in a clear glass protective case, as shown in our photos."