Seiko Cal. 7178 - 233

The 7178-233 is a sought-after Spring Drive piece from Seiko's golden era. With its 18mm lug width and 9.6mm profile, it sits comfortably on most wrists. [seikata-wm-152949c92458]

Also known as: Samurai, Emperor

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

42mm

Case Thickness

9.6mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

30m

Dial Color

Silver

Jewels

29j

Frequency

21,600 bph

Power Reserve

38 hours

Year

1972

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