Seiko Cal. 6391 - 889

This Solar model from 1977 features a 39mm Hardlex-Coated Steel case. With its 20mm lug width and 15.4mm profile, it sits comfortably on most wrists. [seikata-wm-a8469f81a208]

Also known as: Sea Horse

Specifications

Movement

Solar

Case Material

Hardlex-Coated Steel

Case Width

39mm

Case Thickness

15.4mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

70m

Dial Color

Champagne

Jewels

20j

Frequency

36,000 bph

Power Reserve

51 hours

Year

1977

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