Seiko Cal. 6663 - 680

This Spring Drive model from 1980 features a 36mm Hardlex-Coated Steel case. With its 18mm lug width and 15.2mm profile, it sits comfortably on most wrists. [seikata-wm-acf198ab3376]

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

36mm

Case Thickness

15.2mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

60m

Dial Color

Blue Sunburst

Jewels

18j

Frequency

28,800 bph

Power Reserve

62 hours

Year

1980

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