Seiko Cal. 5638 - 188

The Seiko 5638-188 represents an important milestone in Seiko's 1999 lineup. Powered by the 5638 caliber with 36j jewels beating at 21,600 bph, it delivers a 41 hours power reserve. [seikata-wm-4df37efc513f]

Also known as: Pogue

Specifications

Movement

Kinetic

Case Material

Hardlex-Coated Steel

Case Width

35mm

Case Thickness

12.0mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

50m

Dial Color

White

Jewels

36j

Frequency

21,600 bph

Power Reserve

41 hours

Year

1999

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