Seiko 8420-6640

GroupBrandPart NoDescriptionitem no.
crystalSeikoES9N38SN00984ES9N38SN0
crownSeiko25M04EE198425M04EE1
ground packingSeiko0Z1800N019840Z1800N01
otherSeikoWI085OTHER BAND984WI085
Seiko06R23ZSH(HOUR HAND)98406R23ZSH
SeikoDZ0041B01CROWN & STEM GASKET984DZ0041B01