Seiko Cal. 4431 - 730

This Solar model from 1968 features a 43mm Titanium case. The Inner Rotating bezel and 43mm case give it a distinctive presence on the wrist. [seikata-wm-dedf6e64697e]

Specifications

Movement

Solar

Case Material

Titanium

Case Width

43mm

Case Thickness

15.7mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

70m

Dial Color

Cream

Jewels

29j

Frequency

36,000 bph

Power Reserve

42 hours

Year

1968

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