Seiko Cal. 3878 - 115

This Quartz model from 1988 features a 34mm PVD Black case. Powered by the 3878 caliber with 21j jewels beating at 28,800 bph, it delivers a 71 hours power reserve. [seikata-wm-afda9db98937]

Also known as: Tuna

Specifications

Movement

Quartz

Case Material

PVD Black

Case Width

34mm

Case Thickness

9.3mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

150m

Dial Color

Black

Jewels

21j

Frequency

28,800 bph

Power Reserve

71 hours

Year

1988

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