Seiko Cal. 5639 - 666

Released in 1972, the Cal. 5639 with design code 666 was part of Seiko's domestic market collection. It features a Silver dial protected by a Acrylic crystal and offers 200m of water resistance. [seikata-wm-320b8243f005]

Also known as: Shogun, Arnie

Specifications

Movement

Quartz

Case Material

Titanium

Case Width

45mm

Case Thickness

8.1mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

200m

Dial Color

Silver

Jewels

20j

Frequency

21,600 bph

Power Reserve

42 hours

Year

1972

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