Seiko Cal. 5637 - 844

This Kinetic model from 1983 features a 44mm Hardlex-Coated Steel case. Powered by the 5637 caliber with 29j jewels beating at 21,600 bph, it delivers a 60 hours power reserve. [seikata-wm-22aca6fdffe6]

Also known as: Tuna

Specifications

Movement

Kinetic

Case Material

Hardlex-Coated Steel

Case Width

44mm

Case Thickness

8.1mm

Lug Width

21mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

110m

Dial Color

Navy

Jewels

29j

Frequency

21,600 bph

Power Reserve

60 hours

Year

1983

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