Seiko Cal. 3870 - 120

This Quartz model from 1965 features a 34mm PVD Black case. Powered by the 3870 caliber with 33j jewels beating at 28,800 bph, it delivers a 50 hours power reserve. [seikata-wm-807c2b031fe2]

Also known as: Sea Horse

Specifications

Movement

Quartz

Case Material

PVD Black

Case Width

34mm

Case Thickness

14.8mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

150m

Dial Color

Green

Jewels

33j

Frequency

28,800 bph

Power Reserve

50 hours

Year

1965

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