Seiko Cal. 3874 - 991

The Seiko 3874-991 represents an important milestone in Seiko's 1978 lineup. Powered by the 3874 caliber with 31j jewels beating at 21,600 bph, it delivers a 44 hours power reserve. [seikata-wm-f62eef263a3a]

Also known as: Silverwave, Emperor

Specifications

Movement

Automatic

Case Material

Gold-Plated

Case Width

37mm

Case Thickness

8.9mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

80m

Dial Color

Champagne

Jewels

31j

Frequency

21,600 bph

Power Reserve

44 hours

Year

1978

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