Seiko Cal. 3879 - 708

This Automatic model from 1976 features a 42mm PVD Black case. Powered by the 3879 caliber with 22j jewels beating at 36,000 bph, it delivers a 50 hours power reserve. [seikata-wm-392d495d3df4]

Also known as: Monster, Tuna

Specifications

Movement

Automatic

Case Material

PVD Black

Case Width

42mm

Case Thickness

8.2mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

200m

Dial Color

Blue Sunburst

Jewels

22j

Frequency

36,000 bph

Power Reserve

50 hours

Year

1976

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