Seiko Cal. 6691 - 818

The Seiko 6691-818 represents an important milestone in Seiko's 1965 lineup. It features a Blue Sunburst dial protected by a Hardlex crystal and offers 160m of water resistance. [seikata-wm-60ffca47bfd7]

Also known as: Flighty

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

36mm

Case Thickness

12.1mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

160m

Dial Color

Blue Sunburst

Jewels

22j

Frequency

36,000 bph

Power Reserve

56 hours

Year

1965

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