Seiko Cal. 5637 - 650

This Solar model from 1968 features a 34mm Titanium case. The Bidirectional bezel and 34mm case give it a distinctive presence on the wrist. [seikata-wm-62fe4e662e52]

Also known as: Golden Tuna

Specifications

Movement

Solar

Case Material

Titanium

Case Width

34mm

Case Thickness

14.8mm

Lug Width

18mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

200m

Dial Color

Cream

Jewels

18j

Frequency

28,800 bph

Power Reserve

41 hours

Year

1968

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