Seiko Cal. 5638 - 807

The Seiko 5638-807 represents an important milestone in Seiko's 1985 lineup. Powered by the 5638 caliber with 35j jewels beating at 36,000 bph, it delivers a 47 hours power reserve. [seikata-wm-a9b8e353e419]

Also known as: UFO, Emperor

Specifications

Movement

Quartz

Case Material

Hardlex-Coated Steel

Case Width

35mm

Case Thickness

15.5mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

30m

Dial Color

Burgundy

Jewels

35j

Frequency

36,000 bph

Power Reserve

47 hours

Year

1985

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