Seiko Cal. 6637 - 569

The 6637-569 is a sought-after Quartz piece from Seiko's golden era. With its 18mm lug width and 11.4mm profile, it sits comfortably on most wrists. [seikata-wm-83710fcf47ba]

Also known as: UFO

Specifications

Movement

Quartz

Case Material

Titanium

Case Width

40mm

Case Thickness

11.4mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

50m

Dial Color

White

Jewels

23j

Frequency

36,000 bph

Power Reserve

40 hours

Year

1979

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