Seiko Cal. 5639 - 189

The Seiko 5639-189 represents an important milestone in Seiko's 1981 lineup. The Rotating bezel and 45mm case give it a distinctive presence on the wrist. [seikata-wm-a91155914c35]

Also known as: Bullhead

Specifications

Movement

Quartz

Case Material

Titanium

Case Width

45mm

Case Thickness

12.4mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

130m

Dial Color

Green

Jewels

20j

Frequency

28,800 bph

Power Reserve

71 hours

Year

1981

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