Seiko Cal. 3871 - 837

The Seiko 3871-837 represents an important milestone in Seiko's 1971 lineup. Powered by the 3871 caliber with 25j jewels beating at 21,600 bph, it delivers a 71 hours power reserve. [seikata-wm-f0cb703caeb9]

Also known as: Shogun

Specifications

Movement

Automatic

Case Material

Gold-Plated

Case Width

41mm

Case Thickness

8.4mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

170m

Dial Color

Cream

Jewels

25j

Frequency

21,600 bph

Power Reserve

71 hours

Year

1971

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