help with a crystal replacement

I am pretty new to this hobby and I am working on a pretty inexpensive watch for my wife that has a lot of sentimental value. It is not branded in anyway as it was a retirement watch that her dad was given (ISA K63 quartz movement) when he retired from Boeing.

The crystal in this was watch was broken and I am having trouble finding the correct replacement. I pieced together the old crystal as best I could and got a rough measurement of 30.5 and it was 1.3mm thick. I ordered a new crystal of this size but when trying to press it in it wouldn't sit flat on side was always a little higher than the other. I ended up breaking that crystal and thought it was because I hadn't changed the gasket and I was applying to much force. I was using Esslinger's deluxe crystal and case back press.

I took a measurement of the case (31.06mm with my calipers) and ordered a gasket to fit 31mm external diameter with 30mm internal diameter with a 30mm crystal. Upon receiving this they both seem to be too small, both the crystal and the gasket don't fit well and before I order any more parts I wanted some assistance.

here are some photos, I do have the gasket removed. I had a new gasket that was 31mm external diameter but it seemed too small.