Seiko Cal. 5638 - 779

The Seiko 5638-779 represents an important milestone in Seiko's 1993 lineup. The Bidirectional bezel and 43mm case give it a distinctive presence on the wrist. [seikata-wm-ddda5ea7f67b]

Also known as: Samurai

Specifications

Movement

Kinetic

Case Material

Stainless Steel

Case Width

43mm

Case Thickness

13.1mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

140m

Dial Color

Black

Jewels

24j

Frequency

28,800 bph

Power Reserve

54 hours

Year

1993

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