Seiko Cal. 5639 - 100

This Kinetic model from 1973 features a 46mm Titanium case. Powered by the 5639 caliber with 21j jewels beating at 28,800 bph, it delivers a 65 hours power reserve. [seikata-wm-040d4ad2e690]

Also known as: Bullhead, Rally

Specifications

Movement

Kinetic

Case Material

Titanium

Case Width

46mm

Case Thickness

11.4mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

160m

Dial Color

Cream

Jewels

21j

Frequency

28,800 bph

Power Reserve

65 hours

Year

1973

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