Seiko Cal. 3878 - 686

This Automatic model from 1979 features a 34mm Gold-Plated case. The Coin-Edge bezel and 34mm case give it a distinctive presence on the wrist. [seikata-wm-caa98cd116da]

Also known as: Monster

Specifications

Movement

Automatic

Case Material

Gold-Plated

Case Width

34mm

Case Thickness

13.4mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

160m

Dial Color

Silver

Jewels

20j

Frequency

21,600 bph

Power Reserve

58 hours

Year

1979

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