Seiko Cal. 3871 - 566

This Automatic model from 1973 features a 38mm Stainless Steel case. With its 22mm lug width and 9.2mm profile, it sits comfortably on most wrists. [seikata-wm-ee205e5664b5]

Also known as: Sumo

Specifications

Movement

Automatic

Case Material

Stainless Steel

Case Width

38mm

Case Thickness

9.2mm

Lug Width

22mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

40m

Dial Color

Burgundy

Jewels

17j

Frequency

21,600 bph

Power Reserve

36 hours

Year

1973

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