Seiko Cal. 6663 - 411

The Seiko 6663-411 represents an important milestone in Seiko's 1966 lineup. With its 22mm lug width and 14.6mm profile, it sits comfortably on most wrists. [seikata-wm-751bf432bccd]

Also known as: Helmet, Navigator

Specifications

Movement

Automatic

Case Material

Hardlex-Coated Steel

Case Width

42mm

Case Thickness

14.6mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

180m

Dial Color

Green

Jewels

17j

Frequency

36,000 bph

Power Reserve

37 hours

Year

1966

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