Seiko Cal. 6639 - 559

The 6639-559 is a sought-after Kinetic piece from Seiko's golden era. With its 20mm lug width and 10.1mm profile, it sits comfortably on most wrists. [seikata-wm-0e6ec8cf69e8]

Also known as: World Timer

Specifications

Movement

Kinetic

Case Material

Gold-Plated

Case Width

46mm

Case Thickness

10.1mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

90m

Dial Color

White

Jewels

22j

Frequency

21,600 bph

Power Reserve

42 hours

Year

1968

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