Seiko Cal. 5639 - 494

The Seiko 5639-494 represents an important milestone in Seiko's 1984 lineup. The Bidirectional bezel and 37mm case give it a distinctive presence on the wrist. [seikata-wm-d81cd93b7df7]

Also known as: Panda, Sea Horse

Specifications

Movement

Hand-Winding

Case Material

PVD Black

Case Width

37mm

Case Thickness

10.6mm

Lug Width

20mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

190m

Dial Color

Black

Jewels

18j

Frequency

28,800 bph

Power Reserve

42 hours

Year

1984

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