Seiko Cal. 5690 - 781

This Quartz model from 1988 features a 38mm Hardlex-Coated Steel case. With its 20mm lug width and 11.4mm profile, it sits comfortably on most wrists. [seikata-wm-4719a3f707f4]

Also known as: Navigator

Specifications

Movement

Quartz

Case Material

Hardlex-Coated Steel

Case Width

38mm

Case Thickness

11.4mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

150m

Dial Color

Burgundy

Jewels

20j

Frequency

28,800 bph

Power Reserve

53 hours

Year

1988

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