Seiko Cal. 6630 - 891

The Seiko 6630-891 represents an important milestone in Seiko's 1967 lineup. With its 19mm lug width and 15.0mm profile, it sits comfortably on most wrists. [seikata-wm-2d2767d26f93]

Also known as: Helmet

Specifications

Movement

Quartz

Case Material

Titanium

Case Width

42mm

Case Thickness

15.0mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

110m

Dial Color

Green

Jewels

23j

Frequency

36,000 bph

Power Reserve

60 hours

Year

1967

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