This is a FINE CAMEO POCKET WATCH.I have never seen one before like this.There are cultured seed pearls around both sides.The cameo is of Athena and is shell.The size is 1 1/8 and the top part is another 1/2 inch.It does not run and I could not open it.I am sure it could be fixed but if not still a wonderful piece.The setting looks to be silver.Not marked.I see no markings on it anywhere. I would say from 1900-1920.From my own collection.On her helmet there looks to be a horse snake which is a Hippocampus.Much nicer in person
You can wear it on either side