What you have is a jumbo manual wind omega case (37.5mm stainless steel case) with a poorly refinished dial and a movement (cal. 267) that does not belong with that case. Case ref. 2319 housed a 30T1 movement - the movement is also a 30mm manual wind but should have a serial number in the 9 million range. In summary you have a case from the early 1940s combined with a movement from the mid 1950s and a dial from who knows when.