So many things wrong here it’s hard to know where to start.
As you say a cal 564 doesn’t belong with this later 70’s dial.
The case back belongs to a 60’s Constellation (probably 168.004) and doesn’t even fit the case properly.
The main case body doesn’t look like any Connie I’ve seen before, more Seamaster style.
The hands are also wrong which is a minor point in the scale of things.
On a +ve note the dial looks original.
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