Seiko Cal. 6690 - 768

The Seiko 6690-768 represents an important milestone in Seiko's 1990 lineup. It features a Black dial protected by a Acrylic crystal and offers 90m of water resistance. [seikata-wm-851eecbd000f]

Also known as: Helmet, Sea Horse

Specifications

Movement

Quartz

Case Material

Gold-Plated

Case Width

40mm

Case Thickness

9.1mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

90m

Dial Color

Black

Jewels

31j

Frequency

36,000 bph

Power Reserve

56 hours

Year

1990

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