Seiko Cal. 7078 - 405

This Spring Drive model from 1969 features a 39mm PVD Black case. With its 18mm lug width and 12.7mm profile, it sits comfortably on most wrists. [seikata-wm-e0465d1c8ab5]

Also known as: Sumo, Baby Tuna

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

39mm

Case Thickness

12.7mm

Lug Width

18mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

150m

Dial Color

Blue Sunburst

Jewels

30j

Frequency

21,600 bph

Power Reserve

45 hours

Year

1969

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