Seiko Cal. 3861 - 891

This Spring Drive model from 1968 features a 40mm PVD Black case. Powered by the 3861 caliber with 23j jewels beating at 21,600 bph, it delivers a 71 hours power reserve. [seikata-wm-4f6873b4de40]

Also known as: Bellmatic, Emperor

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

40mm

Case Thickness

8.9mm

Lug Width

19mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

70m

Dial Color

Champagne

Jewels

23j

Frequency

21,600 bph

Power Reserve

71 hours

Year

1968

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