Seiko Cal. 6636 - 690

The Seiko 6636-690 represents an important milestone in Seiko's 1968 lineup. It features a Green dial protected by a Mineral crystal and offers 50m of water resistance. [seikata-wm-aa7c42e64ad9]

Also known as: Samurai

Specifications

Movement

Kinetic

Case Material

Stainless Steel

Case Width

41mm

Case Thickness

9.6mm

Lug Width

22mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

50m

Dial Color

Green

Jewels

18j

Frequency

21,600 bph

Power Reserve

67 hours

Year

1968

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