This is the near-legendary authentic Seiko Pro Diver watch band! While Seiko makes this strap for the Seiko Men's Automatic Dive Watch model #SKX171, it fits lots of other Seiko models along with non-Seiko timepieces with 22mm lug widths. The water resistant rubber replacement band comes in basic black with a sleek silver tone buckle. 

Fits Seiko Models; SKX171, 7S26-7020, 7C43-7009, 7C46-7009,7C43-700A, 6309-7049, 7N36-7A08, 7548-700F, 7549-7010, 7N36-7A09, H558-5009, 5H26-7A19, 5H26-7A10, 7002-7039, 7S26-0029, 7N36-6A00, 7002-7039, 7S26-0028, 7N36-7A08, 7548-700F, 7549-7010, 7N36-6A49, S23545, 7N36-6A40, 7S26-0020