Seiko Cal. 6636 - 345

The Seiko 6636-345 represents an important milestone in Seiko's 1987 lineup. It features a Black dial protected by a Hardlex crystal and offers 130m of water resistance. [seikata-wm-5b6af61e734c]

Also known as: Silverwave

Specifications

Movement

Automatic

Case Material

Hardlex-Coated Steel

Case Width

34mm

Case Thickness

12.8mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

130m

Dial Color

Black

Jewels

19j

Frequency

28,800 bph

Power Reserve

56 hours

Year

1987

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