Seiko Cal. 6338 - 637

This Spring Drive model from 1978 features a 39mm Gold-Plated case. With its 22mm lug width and 11.1mm profile, it sits comfortably on most wrists. [seikata-wm-0e7f3cc2b430]

Also known as: Helmet, Rally

Specifications

Movement

Spring Drive

Case Material

Gold-Plated

Case Width

39mm

Case Thickness

11.1mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

200m

Dial Color

Silver

Jewels

24j

Frequency

36,000 bph

Power Reserve

64 hours

Year

1978

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