Seiko Cal. 5635 - 539

This Quartz model from 1973 features a 34mm Titanium case. With its 20mm lug width and 15.5mm profile, it sits comfortably on most wrists. [seikata-wm-a45ea7d70040]

Also known as: Tuna

Specifications

Movement

Quartz

Case Material

Titanium

Case Width

34mm

Case Thickness

15.5mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

180m

Dial Color

Blue Sunburst

Jewels

18j

Frequency

21,600 bph

Power Reserve

62 hours

Year

1973

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