Seiko Cal. 3871 - 276

The Seiko 3871-276 represents an important milestone in Seiko's 1976 lineup. Powered by the 3871 caliber with 21j jewels beating at 28,800 bph, it delivers a 39 hours power reserve. [seikata-wm-dbc44fbc5d27]

Also known as: Sportsmatic, Arnie

Specifications

Movement

Solar

Case Material

PVD Black

Case Width

43mm

Case Thickness

12.2mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

130m

Dial Color

Navy

Jewels

21j

Frequency

28,800 bph

Power Reserve

39 hours

Year

1976

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