Seiko Cal. 5631 - 198

This Kinetic model from 1982 features a 43mm Two-Tone case. Powered by the 5631 caliber with 24j jewels beating at 21,600 bph, it delivers a 39 hours power reserve. [seikata-wm-b4b7159a4e3b]

Also known as: Sportsmatic, Sea Horse

Specifications

Movement

Kinetic

Case Material

Two-Tone

Case Width

43mm

Case Thickness

13.3mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

160m

Dial Color

Navy

Jewels

24j

Frequency

21,600 bph

Power Reserve

39 hours

Year

1982

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