This is the original Seiko screw for the Seiko Prospex Fieldmaster, Tuna Solar & Baby Tuna. 

Sold per 1

This original Seiko shroud screw fits on the following case numbers:

6R15-01W0, 6R15-01W0, 6R15-01W0, 6R15-01W0, V157-0DD0, V157-0DD0, V157-0DD0, 4R36-03Z0, 4R36-03Z0, 4R36-03Z0, 4R36-03Z0, 4R36-03Z0, 4R36-07C0

Related models:

SBDC011, SBDC011J, SBDC035, SBDC035J, SNE541J1, SNE541P1, SNE543P1, SRP637J1, SRP637K1, SRP637P9, SRP639J1, SRP639K1, SRPD15K1