Seiko Cal. 6638 - 266

This Spring Drive model from 1979 features a 38mm Gold-Plated case. With its 18mm lug width and 14.5mm profile, it sits comfortably on most wrists. [seikata-wm-88de85f5a52a]

Also known as: Turtle

Specifications

Movement

Spring Drive

Case Material

Gold-Plated

Case Width

38mm

Case Thickness

14.5mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

60m

Dial Color

Black

Jewels

30j

Frequency

28,800 bph

Power Reserve

39 hours

Year

1979

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