Seiko Cal. 7078 - 191

This Spring Drive model from 1967 features a 40mm PVD Black case. With its 21mm lug width and 8.0mm profile, it sits comfortably on most wrists. [seikata-wm-a4070a22c052]

Also known as: Sumo, Emperor

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

40mm

Case Thickness

8.0mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

200m

Dial Color

White

Jewels

30j

Frequency

21,600 bph

Power Reserve

53 hours

Year

1967

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