Seiko Cal. 6646 - 109

The Seiko 6646-109 represents an important milestone in Seiko's 1970 lineup. With its 21mm lug width and 10.4mm profile, it sits comfortably on most wrists. [seikata-wm-56cd9863f87d]

Also known as: Shogun, Sportsmatic

Specifications

Movement

Automatic

Case Material

Stainless Steel

Case Width

38mm

Case Thickness

10.4mm

Lug Width

21mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

150m

Dial Color

Champagne

Jewels

18j

Frequency

28,800 bph

Power Reserve

71 hours

Year

1970

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