Seiko Cal. 3838 - 638

Released in 1966, the Cal. 3838 with design code 638 was part of Seiko's domestic market collection. With its 18mm lug width and 14.5mm profile, it sits comfortably on most wrists. [seikata-wm-a71e5ca01cff]

Also known as: Bullhead, World Timer

Specifications

Movement

Quartz

Case Material

Gold-Plated

Case Width

39mm

Case Thickness

14.5mm

Lug Width

18mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

130m

Dial Color

Green

Jewels

28j

Frequency

21,600 bph

Power Reserve

51 hours

Year

1966

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