Ladies Omega wrist watch, caliber 23.7 dating to about 1924.
Vitreous enamel dial with Roman numerals and blued steel "leaf" style hands, missing hour and sub-seconds hands.
Case is probably silver of some grade, picture of the inside of the caseback would help.
In it's current condition it's worth very little, cost to restore would be far more than the value of the watch, even if parts could be found.