Seiko Cal. 5657 - 978

This Kinetic model from 1973 features a 40mm Two-Tone case. With its 21mm lug width and 12.0mm profile, it sits comfortably on most wrists. [seikata-wm-928199beb376]

Also known as: Sea Horse, Golden Tuna

Specifications

Movement

Kinetic

Case Material

Two-Tone

Case Width

40mm

Case Thickness

12.0mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

40m

Dial Color

Cream

Jewels

28j

Frequency

21,600 bph

Power Reserve

56 hours

Year

1973

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