Seiko YS31-4000 Watch Guide

The Seiko YS31-4000 is a watch model based on the YS31 movement.

Parts List

0G1100N01case back gasket
HL77Dband - leather band
HL78Dband - leather band
KL78Bband - leather band
A100BSothers - push pin (for mb)

Other models with the same movement

YS31-4010