Seiko Cal. 5638 - 433

This Solar model from 1977 features a 40mm Hardlex-Coated Steel case. Powered by the 5638 caliber with 31j jewels beating at 21,600 bph, it delivers a 72 hours power reserve. [seikata-wm-1ecace812762]

Also known as: Arnie

Specifications

Movement

Solar

Case Material

Hardlex-Coated Steel

Case Width

40mm

Case Thickness

9.4mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

160m

Dial Color

Cream

Jewels

31j

Frequency

21,600 bph

Power Reserve

72 hours

Year

1977

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