Seiko Cal. 7178 - 378

The Seiko 7178-378 represents an important milestone in Seiko's 1967 lineup. With its 19mm lug width and 10.1mm profile, it sits comfortably on most wrists. [seikata-wm-64ffbb34c05f]

Also known as: Bullhead, Arnie

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

35mm

Case Thickness

10.1mm

Lug Width

19mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

150m

Dial Color

Green

Jewels

29j

Frequency

28,800 bph

Power Reserve

49 hours

Year

1967

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