Seiko — Other

Helmet

Produced 1977. The Seiko Helmet reference 6139-7100, from 1977, is a 40mm chronograph with chronograph index markers, powered by the automatic caliber 6139, its case shape giving rise to the Helmet nickname.

Open in The Dial Atlas
Seiko Helmet 6139-7100
Reference6139-7100
BrandSeiko
FamilyOther
Produced1977
StatusDiscontinued

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