Seiko Cal. 3876 - 381

The Seiko 3876-381 represents an important milestone in Seiko's 1965 lineup. Powered by the 3876 caliber with 21j jewels beating at 36,000 bph, it delivers a 40 hours power reserve. [seikata-wm-c43074865eb0]

Also known as: Bullhead, Baby Tuna

Specifications

Movement

Kinetic

Case Material

Gold-Plated

Case Width

40mm

Case Thickness

11.4mm

Lug Width

18mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

130m

Dial Color

White

Jewels

21j

Frequency

36,000 bph

Power Reserve

40 hours

Year

1965

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