Seiko Cal. 5691 - 634

The Seiko 5691-634 represents an important milestone in Seiko's 1972 lineup. The Fixed bezel and 44mm case give it a distinctive presence on the wrist. [seikata-wm-dc7611fc5027]

Also known as: Turtle

Specifications

Movement

Automatic

Case Material

Stainless Steel

Case Width

44mm

Case Thickness

15.1mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

30m

Dial Color

Navy

Jewels

18j

Frequency

21,600 bph

Power Reserve

43 hours

Year

1972

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