Seiko Cal. 6635 - 187

This Solar model from 1966 features a 41mm Hardlex-Coated Steel case. With its 20mm lug width and 11.2mm profile, it sits comfortably on most wrists. [seikata-wm-4a89f000770d]

Also known as: Monster

Specifications

Movement

Solar

Case Material

Hardlex-Coated Steel

Case Width

41mm

Case Thickness

11.2mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

130m

Dial Color

Champagne

Jewels

31j

Frequency

21,600 bph

Power Reserve

46 hours

Year

1966

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