Seiko Cal. 3876 - 631

The Seiko 3876-631 represents an important milestone in Seiko's 1975 lineup. Powered by the 3876 caliber with 20j jewels beating at 21,600 bph, it delivers a 68 hours power reserve. [seikata-wm-363c76c4ef79]

Also known as: Samurai

Specifications

Movement

Quartz

Case Material

Hardlex-Coated Steel

Case Width

41mm

Case Thickness

14.2mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

200m

Dial Color

Champagne

Jewels

20j

Frequency

21,600 bph

Power Reserve

68 hours

Year

1975

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