Seiko Cal. 6639 - 665

This Solar model from 1968 features a 36mm Hardlex-Coated Steel case. The Inner Rotating bezel and 36mm case give it a distinctive presence on the wrist. [seikata-wm-a1a477691207]

Also known as: Goldfeather

Specifications

Movement

Solar

Case Material

Hardlex-Coated Steel

Case Width

36mm

Case Thickness

10.9mm

Lug Width

18mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

100m

Dial Color

Green

Jewels

31j

Frequency

36,000 bph

Power Reserve

56 hours

Year

1968

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