Seiko Cal. 3870 - 491

This Automatic model from 1971 features a 37mm Hardlex-Coated Steel case. With its 20mm lug width and 9.5mm profile, it sits comfortably on most wrists. [seikata-wm-0e9a9b929e13]

Also known as: Emperor

Specifications

Movement

Automatic

Case Material

Hardlex-Coated Steel

Case Width

37mm

Case Thickness

9.5mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

150m

Dial Color

White

Jewels

35j

Frequency

36,000 bph

Power Reserve

57 hours

Year

1971

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