Seiko Cal. 5638 - 641

This Solar model from 1984 features a 40mm PVD Black case. With its 19mm lug width and 9.3mm profile, it sits comfortably on most wrists. [seikata-wm-e372a7f4c206]

Also known as: Crown

Specifications

Movement

Solar

Case Material

PVD Black

Case Width

40mm

Case Thickness

9.3mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

160m

Dial Color

Cream

Jewels

20j

Frequency

36,000 bph

Power Reserve

43 hours

Year

1984

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