Seiko Cal. 6690 - 699

This Quartz model from 1970 features a 37mm Stainless Steel case. The Fixed bezel and 37mm case give it a distinctive presence on the wrist. [seikata-wm-f30e69d4b98c]

Also known as: Sumo

Specifications

Movement

Quartz

Case Material

Stainless Steel

Case Width

37mm

Case Thickness

12.9mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

90m

Dial Color

Champagne

Jewels

33j

Frequency

36,000 bph

Power Reserve

63 hours

Year

1970

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