Seiko Cal. 5639 - 365

This Solar model from 1977 features a 38mm Hardlex-Coated Steel case. The Rotating bezel and 38mm case give it a distinctive presence on the wrist. [seikata-wm-2b6e0448192b]

Also known as: Monster, Rally

Specifications

Movement

Solar

Case Material

Hardlex-Coated Steel

Case Width

38mm

Case Thickness

12.0mm

Lug Width

19mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

110m

Dial Color

Black

Jewels

24j

Frequency

36,000 bph

Power Reserve

49 hours

Year

1977

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