Seiko Cal. 0761 - 712

This Spring Drive model from 1979 features a 37mm Hardlex-Coated Steel case. It features a White dial protected by a Hardlex crystal and offers 130m of water resistance. [seikata-wm-e2f9a2e13bf0]

Also known as: Tuna, Helmet

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

37mm

Case Thickness

13.0mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

130m

Dial Color

White

Jewels

26j

Frequency

21,600 bph

Power Reserve

68 hours

Year

1979

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