Seiko Cal. 6640 - 811

This Solar model from 1983 features a 46mm Stainless Steel case. The Inner Rotating bezel and 46mm case give it a distinctive presence on the wrist. [seikata-wm-8bd3439cabe5]

Also known as: Sumo, Pogue

Specifications

Movement

Solar

Case Material

Stainless Steel

Case Width

46mm

Case Thickness

11.3mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

130m

Dial Color

Black

Jewels

33j

Frequency

21,600 bph

Power Reserve

57 hours

Year

1983

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