Seiko Cal. 3870 - 522

This Automatic model from 1970 features a 34mm Hardlex-Coated Steel case. Powered by the 3870 caliber with 18j jewels beating at 21,600 bph, it delivers a 43 hours power reserve. [seikata-wm-0acd7ce394c1]

Also known as: Sea Horse

Specifications

Movement

Automatic

Case Material

Hardlex-Coated Steel

Case Width

34mm

Case Thickness

14.1mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

80m

Dial Color

Cream

Jewels

18j

Frequency

21,600 bph

Power Reserve

43 hours

Year

1970

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