Seiko Cal. 6677 - 756

This Quartz model from 1980 features a 37mm Hardlex-Coated Steel case. With its 19mm lug width and 9.2mm profile, it sits comfortably on most wrists. [seikata-wm-7ec909948b2b]

Also known as: Helmet

Specifications

Movement

Quartz

Case Material

Hardlex-Coated Steel

Case Width

37mm

Case Thickness

9.2mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

160m

Dial Color

Blue Sunburst

Jewels

21j

Frequency

36,000 bph

Power Reserve

39 hours

Year

1980

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