Seiko Cal. 3878 - 234

Released in 1980, the Cal. 3878 with design code 234 was part of Seiko's domestic market collection. It features a Blue Sunburst dial protected by a Hardlex crystal and offers 100m of water resistance. [seikata-wm-dbbf7fd1dfc2]

Also known as: Monster, Baby Tuna

Specifications

Movement

Kinetic

Case Material

PVD Black

Case Width

37mm

Case Thickness

12.5mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

100m

Dial Color

Blue Sunburst

Jewels

20j

Frequency

28,800 bph

Power Reserve

67 hours

Year

1980

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