Seiko Cal. 6690 - 818

The Seiko 6690-818 represents an important milestone in Seiko's 1982 lineup. It features a Black dial protected by a Acrylic crystal and offers 90m of water resistance. [seikata-wm-4d50d9b35ba5]

Also known as: Samurai

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

36mm

Case Thickness

12.8mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

90m

Dial Color

Black

Jewels

28j

Frequency

36,000 bph

Power Reserve

70 hours

Year

1982

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