Seiko Cal. 5639 - 632

The Seiko 5639-632 represents an important milestone in Seiko's 1980 lineup. Powered by the 5639 caliber with 20j jewels beating at 36,000 bph, it delivers a 52 hours power reserve. [seikata-wm-246fda93ebd3]

Also known as: Turtle, Sea Horse

Specifications

Movement

Kinetic

Case Material

Gold-Plated

Case Width

34mm

Case Thickness

10.0mm

Lug Width

19mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

70m

Dial Color

White

Jewels

20j

Frequency

36,000 bph

Power Reserve

52 hours

Year

1980

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