Seiko Cal. 5637 - 430

This Kinetic model from 1988 features a 41mm Hardlex-Coated Steel case. Powered by the 5637 caliber with 30j jewels beating at 28,800 bph, it delivers a 65 hours power reserve. [seikata-wm-05a1d034f698]

Also known as: Sumo, Navigator

Specifications

Movement

Kinetic

Case Material

Hardlex-Coated Steel

Case Width

41mm

Case Thickness

10.2mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

120m

Dial Color

Silver

Jewels

30j

Frequency

28,800 bph

Power Reserve

65 hours

Year

1988

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