Seiko Cal. 5638 - 390

The Seiko 5638-390 represents an important milestone in Seiko's 1994 lineup. Powered by the 5638 caliber with 36j jewels beating at 21,600 bph, it delivers a 40 hours power reserve. [seikata-wm-d29000062983]

Also known as: Samurai, Flighty

Specifications

Movement

Quartz

Case Material

Hardlex-Coated Steel

Case Width

42mm

Case Thickness

14.6mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

30m

Dial Color

Cream

Jewels

36j

Frequency

21,600 bph

Power Reserve

40 hours

Year

1994

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