Seiko Cal. 3871 - 164

Released in 1971, the Cal. 3871 with design code 164 was part of Seiko's domestic market collection. Powered by the 3871 caliber with 31j jewels beating at 21,600 bph, it delivers a 70 hours power reserve. [seikata-wm-1ba141bdd444]

Also known as: Bellmatic, Emperor

Specifications

Movement

Kinetic

Case Material

Gold-Plated

Case Width

42mm

Case Thickness

11.1mm

Lug Width

22mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

100m

Dial Color

Black

Jewels

31j

Frequency

21,600 bph

Power Reserve

70 hours

Year

1971

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