Seiko SKX007 on genuine Seiko Z22 Flat Vent strap.
Purchased new from Long Island Watch 7/2019.
Alignment is spot on to my eye.
Marks on lower left lug, upper right lug, and strap change marks on bottoms (I was able to exaggerate in the pictures).
Comes with box and papers.
Asking $260 NET shipped via USPS Priority