Seiko Cal. 6651 - 990

The Seiko 6651-990 represents an important milestone in Seiko's 1971 lineup. With its 22mm lug width and 15.8mm profile, it sits comfortably on most wrists. [seikata-wm-3cfbb4b4b47c]

Also known as: UFO

Specifications

Movement

Hand-Winding

Case Material

Titanium

Case Width

37mm

Case Thickness

15.8mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

50m

Dial Color

Burgundy

Jewels

21j

Frequency

36,000 bph

Power Reserve

48 hours

Year

1971

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