Seiko Cal. 5639 - 731

This Kinetic model from 1988 features a 36mm Two-Tone case. Powered by the 5639 caliber with 26j jewels beating at 21,600 bph, it delivers a 67 hours power reserve. [seikata-wm-ff6db622d562]

Also known as: Crown

Specifications

Movement

Kinetic

Case Material

Two-Tone

Case Width

36mm

Case Thickness

11.5mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

70m

Dial Color

Champagne

Jewels

26j

Frequency

21,600 bph

Power Reserve

67 hours

Year

1988

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