Seiko Cal. 5638 - 139

The Seiko 5638-139 represents an important milestone in Seiko's 1989 lineup. Powered by the 5638 caliber with 29j jewels beating at 28,800 bph, it delivers a 36 hours power reserve. [seikata-wm-24d455a046e4]

Also known as: Shogun, Goldfeather

Specifications

Movement

Quartz

Case Material

Two-Tone

Case Width

40mm

Case Thickness

10.1mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

60m

Dial Color

Champagne

Jewels

29j

Frequency

28,800 bph

Power Reserve

36 hours

Year

1989

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