Seiko Cal. 6620 - 990

The Seiko 6620-990 represents an important milestone in Seiko's 1988 lineup. With its 19mm lug width and 13.8mm profile, it sits comfortably on most wrists. [seikata-wm-1d778571b625]

Also known as: UFO, Arnie

Specifications

Movement

Automatic

Case Material

Two-Tone

Case Width

40mm

Case Thickness

13.8mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

190m

Dial Color

Blue Sunburst

Jewels

21j

Frequency

28,800 bph

Power Reserve

37 hours

Year

1988

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