Seiko Cal. 5638 - 206

This Quartz model from 1971 features a 46mm Titanium case. With its 18mm lug width and 14.8mm profile, it sits comfortably on most wrists. [seikata-wm-9a28a41add73]

Also known as: Baby Tuna

Specifications

Movement

Quartz

Case Material

Titanium

Case Width

46mm

Case Thickness

14.8mm

Lug Width

18mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

130m

Dial Color

Blue Sunburst

Jewels

28j

Frequency

21,600 bph

Power Reserve

64 hours

Year

1971

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