Seiko Cal. 5278 - 662

The Seiko 5278-662 represents an important milestone in Seiko's 1980 lineup. With its 18mm lug width and 9.7mm profile, it sits comfortably on most wrists. [seikata-wm-c4fbf1069ca5]

Also known as: Sumo

Specifications

Movement

Solar

Case Material

Titanium

Case Width

36mm

Case Thickness

9.7mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

100m

Dial Color

Green

Jewels

33j

Frequency

36,000 bph

Power Reserve

38 hours

Year

1980

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