Seiko Cal. 6631 - 806

The Seiko 6631-806 represents an important milestone in Seiko's 1972 lineup. With its 18mm lug width and 8.9mm profile, it sits comfortably on most wrists. [seikata-wm-ecd022fb2b85]

Also known as: Arnie

Specifications

Movement

Kinetic

Case Material

Two-Tone

Case Width

45mm

Case Thickness

8.9mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

150m

Dial Color

Blue Sunburst

Jewels

32j

Frequency

28,800 bph

Power Reserve

43 hours

Year

1972

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