Seiko Cal. 3891 - 277

This Automatic model from 1979 features a 39mm Stainless Steel case. Powered by the 3891 caliber with 31j jewels beating at 28,800 bph, it delivers a 57 hours power reserve. [seikata-wm-81f1e4c6feb8]

Also known as: Shogun

Specifications

Movement

Automatic

Case Material

Stainless Steel

Case Width

39mm

Case Thickness

11.3mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

180m

Dial Color

Green

Jewels

31j

Frequency

28,800 bph

Power Reserve

57 hours

Year

1979

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