Seiko Cal. 3871 - 676

The Seiko 3871-676 represents an important milestone in Seiko's 1967 lineup. Powered by the 3871 caliber with 22j jewels beating at 21,600 bph, it delivers a 62 hours power reserve. [seikata-wm-0e9477d1cbeb]

Also known as: Sumo, Baby Tuna

Specifications

Movement

Quartz

Case Material

Two-Tone

Case Width

39mm

Case Thickness

9.7mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

30m

Dial Color

Navy

Jewels

22j

Frequency

21,600 bph

Power Reserve

62 hours

Year

1967

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