Seiko Cal. 6640 - 491

This Solar model from 1976 features a 38mm Hardlex-Coated Steel case. With its 19mm lug width and 14.9mm profile, it sits comfortably on most wrists. [seikata-wm-c93151d133b0]

Also known as: Shogun

Specifications

Movement

Solar

Case Material

Hardlex-Coated Steel

Case Width

38mm

Case Thickness

14.9mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

90m

Dial Color

Blue Sunburst

Jewels

21j

Frequency

28,800 bph

Power Reserve

50 hours

Year

1976

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