Seiko Cal. 6138 - 764

This Spring Drive model from 1978 features a 43mm Gold-Plated case. With its 19mm lug width and 15.0mm profile, it sits comfortably on most wrists. [seikata-wm-52d5086b1d20]

Also known as: Sea Horse

Specifications

Movement

Spring Drive

Case Material

Gold-Plated

Case Width

43mm

Case Thickness

15.0mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

130m

Dial Color

Blue Sunburst

Jewels

21j

Frequency

21,600 bph

Power Reserve

53 hours

Year

1978

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