Seiko Cal. 5639 - 898

The Seiko 5639-898 represents an important milestone in Seiko's 1976 lineup. The Bidirectional bezel and 36mm case give it a distinctive presence on the wrist. [seikata-wm-3b9649b407e5]

Also known as: Samurai

Specifications

Movement

Hand-Winding

Case Material

Titanium

Case Width

36mm

Case Thickness

12.3mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

140m

Dial Color

Green

Jewels

20j

Frequency

21,600 bph

Power Reserve

65 hours

Year

1976

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