Seiko Cal. 5637 - 958

The Seiko 5637-958 represents an important milestone in Seiko's 1967 lineup. The Fixed bezel and 45mm case give it a distinctive presence on the wrist. [seikata-wm-ba4f4a55a33d]

Also known as: Crown, Baby Tuna

Specifications

Movement

Automatic

Case Material

Titanium

Case Width

45mm

Case Thickness

10.9mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

190m

Dial Color

Champagne

Jewels

34j

Frequency

21,600 bph

Power Reserve

64 hours

Year

1967

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