IntenseImage
·Well, perhaps you chose the wrong option somewhere since dial variants are fairly subtle for a beginner, but it does not appear to have the correct dial for a -71, and the purchase date makes it very unlikely. The reference number would be inside the caseback, and I would bet that it doesn't say 145.022-71. Probably just 145.022. I had originally assumed that you had read the reference from the case-back.
Also, the serial number would be on the movement not the case. I'm quite skeptical that it doesn't have a serial number.
Perhaps I'll pop the back off later to see
Replacement hands are superL or tritium ?
Don't know but doing a swap back to original will keep the patina even