Seiko Cal. 6691 - 913

This Solar model from 1973 features a 40mm Gold-Plated case. The Bidirectional bezel and 40mm case give it a distinctive presence on the wrist. [seikata-wm-36cc4906fbaa]

Also known as: Helmet

Specifications

Movement

Solar

Case Material

Gold-Plated

Case Width

40mm

Case Thickness

15.0mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

200m

Dial Color

Black

Jewels

34j

Frequency

36,000 bph

Power Reserve

53 hours

Year

1973

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