Seiko Cal. 5678 - 571

The Seiko 5678-571 represents an important milestone in Seiko's 1975 lineup. Powered by the 5678 caliber with 24j jewels beating at 28,800 bph, it delivers a 50 hours power reserve. [seikata-wm-460c933caff7]

Also known as: Bullhead, Helmet

Specifications

Movement

Kinetic

Case Material

Two-Tone

Case Width

38mm

Case Thickness

11.9mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

140m

Dial Color

Green

Jewels

24j

Frequency

28,800 bph

Power Reserve

50 hours

Year

1975

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