Seiko Cal. 6631 - 932

This Solar model from 1970 features a 43mm Two-Tone case. The Coin-Edge bezel and 43mm case give it a distinctive presence on the wrist. [seikata-wm-caa66fd2eb1d]

Also known as: Monster, Navigator

Specifications

Movement

Solar

Case Material

Two-Tone

Case Width

43mm

Case Thickness

8.6mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

170m

Dial Color

Cream

Jewels

21j

Frequency

36,000 bph

Power Reserve

55 hours

Year

1970

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