Seiko Cal. 6378 - 287

This Spring Drive model from 1998 features a 37mm PVD Black case. With its 21mm lug width and 15.6mm profile, it sits comfortably on most wrists. [seikata-wm-aa0bd8bc973d]

Also known as: Samurai, Helmet

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

37mm

Case Thickness

15.6mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

140m

Dial Color

Cream

Jewels

34j

Frequency

28,800 bph

Power Reserve

40 hours

Year

1998

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