Seiko Cal. 6660 - 646

The Seiko 6660-646 represents an important milestone in Seiko's 1980 lineup. With its 18mm lug width and 10.2mm profile, it sits comfortably on most wrists. [seikata-wm-a62448b3e178]

Also known as: Crown

Specifications

Movement

Quartz

Case Material

Hardlex-Coated Steel

Case Width

40mm

Case Thickness

10.2mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

160m

Dial Color

Champagne

Jewels

18j

Frequency

28,800 bph

Power Reserve

49 hours

Year

1980

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