Need a shot of the back to see the position of the lugs.
330/332 base movements (subseconds are 30.10 mm)
351 SS are 28.10 mm as is 342 subseconds.
471 is 25mm
500 is 28mm
550 is 27.9
A check of crystal OD diameters from the crystal charts can also give an indication what case the dial will fit in. This in turn can often identify the movement.
I usually look for case/dial combinations what fit the movements I have.