Seiko Cal. 5678 - 976

This Spring Drive model from 1982 features a 39mm PVD Black case. With its 20mm lug width and 8.9mm profile, it sits comfortably on most wrists. [seikata-wm-3cfb3c2a3b40]

Also known as: Sumo

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

39mm

Case Thickness

8.9mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

190m

Dial Color

Cream

Jewels

28j

Frequency

21,600 bph

Power Reserve

68 hours

Year

1982

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