Seiko Cal. 5642 - 428

This Solar model from 1980 features a 44mm Gold-Plated case. With its 19mm lug width and 14.4mm profile, it sits comfortably on most wrists. [seikata-wm-db2811d872b2]

Also known as: Sumo, Sportsmatic

Specifications

Movement

Solar

Case Material

Gold-Plated

Case Width

44mm

Case Thickness

14.4mm

Lug Width

19mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

40m

Dial Color

Cream

Jewels

33j

Frequency

28,800 bph

Power Reserve

55 hours

Year

1980

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