Seiko Cal. 3870 - 790

This Automatic model from 1972 features a 37mm Hardlex-Coated Steel case. Powered by the 3870 caliber with 36j jewels beating at 36,000 bph, it delivers a 59 hours power reserve. [seikata-wm-54d9ff9e8d3d]

Also known as: UFO

Specifications

Movement

Automatic

Case Material

Hardlex-Coated Steel

Case Width

37mm

Case Thickness

10.3mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

100m

Dial Color

Cream

Jewels

36j

Frequency

36,000 bph

Power Reserve

59 hours

Year

1972

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