Seiko Cal. 3871 - 634

The Seiko 3871-634 represents an important milestone in Seiko's 1989 lineup. Powered by the 3871 caliber with 27j jewels beating at 21,600 bph, it delivers a 37 hours power reserve. [seikata-wm-6d012243de3a]

Also known as: Goldfeather

Specifications

Movement

Solar

Case Material

Two-Tone

Case Width

45mm

Case Thickness

9.4mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

130m

Dial Color

Blue Sunburst

Jewels

27j

Frequency

21,600 bph

Power Reserve

37 hours

Year

1989

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