Seiko Cal. 5639 - 237

This Kinetic model from 1979 features a 37mm Titanium case. It features a Green dial protected by a Acrylic crystal and offers 130m of water resistance. [seikata-wm-3e7a9476e9d1]

Also known as: Helmet, Navigator

Specifications

Movement

Kinetic

Case Material

Titanium

Case Width

37mm

Case Thickness

15.9mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

130m

Dial Color

Green

Jewels

30j

Frequency

28,800 bph

Power Reserve

54 hours

Year

1979

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