Seiko Cal. 5639 - 870

The 5639-870 is a sought-after Quartz piece from Seiko's golden era. With its 20mm lug width and 8.6mm profile, it sits comfortably on most wrists. [seikata-wm-c871b4028497]

Also known as: Crown

Specifications

Movement

Quartz

Case Material

Two-Tone

Case Width

43mm

Case Thickness

8.6mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

60m

Dial Color

Black

Jewels

17j

Frequency

28,800 bph

Power Reserve

47 hours

Year

1972

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