Seiko Cal. 6637 - 980

The 6637-980 is a sought-after Quartz piece from Seiko's golden era. With its 18mm lug width and 14.1mm profile, it sits comfortably on most wrists. [seikata-wm-d428252c76f6]

Also known as: Sea Horse, Crown

Specifications

Movement

Quartz

Case Material

Two-Tone

Case Width

40mm

Case Thickness

14.1mm

Lug Width

18mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

100m

Dial Color

Champagne

Jewels

18j

Frequency

21,600 bph

Power Reserve

56 hours

Year

1973

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