Seiko Cal. 6636 - 940

This Spring Drive model from 1979 features a 36mm Stainless Steel case. It features a Champagne dial protected by a Hardlex crystal and offers 160m of water resistance. [seikata-wm-3e5e7385053d]

Specifications

Movement

Spring Drive

Case Material

Stainless Steel

Case Width

36mm

Case Thickness

10.9mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

160m

Dial Color

Champagne

Jewels

31j

Frequency

21,600 bph

Power Reserve

54 hours

Year

1979

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