It was for other case references like the oval cases, the square case 166.081 / 166.145 are date only and were produced at the end of the 60s through to the 70s so only 563/565 are valid. The trouble is people take Day-Date dials and movements from other Geneves and drop them in, while they fit they sit incorrectly since the 75x movement is 0.5 mm thicker
Click to expand...