Seiko Cal. 5691 - 979

This Hand-Winding model from 1974 features a 38mm Hardlex-Coated Steel case. It features a Cream dial protected by a Sapphire crystal and offers 140m of water resistance. [seikata-wm-2c6ab0e636ad]

Also known as: Monster, Helmet

Specifications

Movement

Hand-Winding

Case Material

Hardlex-Coated Steel

Case Width

38mm

Case Thickness

15.8mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

140m

Dial Color

Cream

Jewels

35j

Frequency

28,800 bph

Power Reserve

69 hours

Year

1974

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