Seiko Cal. 6378 - 899

This Spring Drive model from 1999 features a 41mm PVD Black case. It features a Blue Sunburst dial protected by a Acrylic crystal and offers 130m of water resistance. [seikata-wm-225a67812d04]

Also known as: Samurai

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

41mm

Case Thickness

13.9mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

130m

Dial Color

Blue Sunburst

Jewels

18j

Frequency

28,800 bph

Power Reserve

60 hours

Year

1999

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