Seiko Cal. 6631 - 323

This Solar model from 1965 features a 34mm Two-Tone case. The Rotating bezel and 34mm case give it a distinctive presence on the wrist. [seikata-wm-e52eac5a7777]

Also known as: Rally, Sea Horse

Specifications

Movement

Solar

Case Material

Two-Tone

Case Width

34mm

Case Thickness

12.0mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

100m

Dial Color

White

Jewels

31j

Frequency

21,600 bph

Power Reserve

36 hours

Year

1965

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