Seiko Cal. 6630 - 106

The Seiko 6630-106 represents an important milestone in Seiko's 1981 lineup. With its 18mm lug width and 9.8mm profile, it sits comfortably on most wrists. [seikata-wm-e82120ab925b]

Also known as: Bullhead, Navigator

Specifications

Movement

Hand-Winding

Case Material

Hardlex-Coated Steel

Case Width

42mm

Case Thickness

9.8mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

140m

Dial Color

White

Jewels

24j

Frequency

28,800 bph

Power Reserve

65 hours

Year

1981

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