Seiko Cal. 4431 - 675

This Solar model from 1975 features a 38mm Titanium case. With its 19mm lug width and 13.3mm profile, it sits comfortably on most wrists. [seikata-wm-ff249aae9fa7]

Also known as: Golden Tuna

Specifications

Movement

Solar

Case Material

Titanium

Case Width

38mm

Case Thickness

13.3mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

120m

Dial Color

Blue Sunburst

Jewels

17j

Frequency

28,800 bph

Power Reserve

44 hours

Year

1975

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