Seiko Cal. 3872 - 771

The Seiko 3872-771 represents an important milestone in Seiko's 1972 lineup. Powered by the 3872 caliber with 27j jewels beating at 28,800 bph, it delivers a 62 hours power reserve. [seikata-wm-41356cbf9ae0]

Also known as: Baby Tuna, Flighty

Specifications

Movement

Kinetic

Case Material

Two-Tone

Case Width

40mm

Case Thickness

9.4mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

100m

Dial Color

Black

Jewels

27j

Frequency

28,800 bph

Power Reserve

62 hours

Year

1972

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