Seiko Cal. 3891 - 439

The 3891-439 is a sought-after Solar piece from Seiko's golden era. Powered by the 3891 caliber with 36j jewels beating at 21,600 bph, it delivers a 51 hours power reserve. [seikata-wm-9fa8a92c73c5]

Also known as: Shogun, Sea Horse

Specifications

Movement

Solar

Case Material

PVD Black

Case Width

37mm

Case Thickness

13.6mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

140m

Dial Color

Burgundy

Jewels

36j

Frequency

21,600 bph

Power Reserve

51 hours

Year

1973

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