Seiko Cal. 6642 - 520

This Spring Drive model from 1971 features a 37mm Gold-Plated case. With its 21mm lug width and 9.0mm profile, it sits comfortably on most wrists. [seikata-wm-1fe2681ccbf6]

Also known as: Sportsmatic

Specifications

Movement

Spring Drive

Case Material

Gold-Plated

Case Width

37mm

Case Thickness

9.0mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

180m

Dial Color

Champagne

Jewels

26j

Frequency

21,600 bph

Power Reserve

43 hours

Year

1971

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