Seiko Cal. 6690 - 908

This Spring Drive model from 1987 features a 38mm Hardlex-Coated Steel case. With its 22mm lug width and 15.2mm profile, it sits comfortably on most wrists. [seikata-wm-b36a38892a84]

Also known as: UFO, World Timer

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

38mm

Case Thickness

15.2mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

190m

Dial Color

White

Jewels

20j

Frequency

21,600 bph

Power Reserve

49 hours

Year

1987

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