Seiko Cal. 6635 - 437

This Solar model from 1990 features a 35mm Gold-Plated case. With its 21mm lug width and 10.4mm profile, it sits comfortably on most wrists. [seikata-wm-3e0eca4ff05d]

Also known as: Sumo, Rally

Specifications

Movement

Solar

Case Material

Gold-Plated

Case Width

35mm

Case Thickness

10.4mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

40m

Dial Color

Blue Sunburst

Jewels

25j

Frequency

36,000 bph

Power Reserve

62 hours

Year

1990

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