Seiko Cal. 6661 - 689

The 6661-689 is a sought-after Quartz piece from Seiko's golden era. With its 18mm lug width and 12.0mm profile, it sits comfortably on most wrists. [seikata-wm-b16dcc2ffd96]

Also known as: UFO

Specifications

Movement

Quartz

Case Material

Hardlex-Coated Steel

Case Width

35mm

Case Thickness

12.0mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

30m

Dial Color

Blue Sunburst

Jewels

18j

Frequency

21,600 bph

Power Reserve

39 hours

Year

1983

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