Seiko Cal. 6636 - 428

The Seiko 6636-428 represents an important milestone in Seiko's 1970 lineup. It features a Blue Sunburst dial protected by a Acrylic crystal and offers 130m of water resistance. [seikata-wm-db9f65ea6b2c]

Also known as: Samurai, Rally

Specifications

Movement

Quartz

Case Material

Stainless Steel

Case Width

35mm

Case Thickness

15.4mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

130m

Dial Color

Blue Sunburst

Jewels

34j

Frequency

28,800 bph

Power Reserve

64 hours

Year

1970

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