Seiko Cal. 7178 - 643

The Seiko 7178-643 represents an important milestone in Seiko's 1976 lineup. Powered by the 7178 caliber with 18j jewels beating at 36,000 bph, it delivers a 60 hours power reserve. [seikata-wm-53ece80421af]

Also known as: Shogun, Helmet

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

42mm

Case Thickness

14.6mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

130m

Dial Color

Burgundy

Jewels

18j

Frequency

36,000 bph

Power Reserve

60 hours

Year

1976

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