Seiko Cal. 5639 - 924

The Seiko 5639-924 represents an important milestone in Seiko's 1987 lineup. It features a Black dial protected by a Acrylic crystal and offers 200m of water resistance. [seikata-wm-4b04be8bcf0f]

Also known as: Flighty

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

35mm

Case Thickness

12.0mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

200m

Dial Color

Black

Jewels

18j

Frequency

21,600 bph

Power Reserve

51 hours

Year

1987

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