Seiko Cal. 6636 - 667

This Spring Drive model from 1980 features a 35mm Gold-Plated case. It features a Cream dial protected by a Hardlex crystal and offers 190m of water resistance. [seikata-wm-29a1420c6c48]

Also known as: Bullhead

Specifications

Movement

Spring Drive

Case Material

Gold-Plated

Case Width

35mm

Case Thickness

11.0mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

190m

Dial Color

Cream

Jewels

35j

Frequency

21,600 bph

Power Reserve

51 hours

Year

1980

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