Seiko Cal. 5638 - 491

The Seiko 5638-491 represents an important milestone in Seiko's 1997 lineup. The Fixed bezel and 34mm case give it a distinctive presence on the wrist. [seikata-wm-1c749bb825ed]

Also known as: Golden Tuna, Flighty

Specifications

Movement

Hand-Winding

Case Material

Gold-Plated

Case Width

34mm

Case Thickness

12.0mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

190m

Dial Color

Blue Sunburst

Jewels

18j

Frequency

28,800 bph

Power Reserve

65 hours

Year

1997

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