Seiko Cal. 6621 - 983

The Seiko 6621-983 represents an important milestone in Seiko's 1981 lineup. With its 19mm lug width and 15.5mm profile, it sits comfortably on most wrists. [seikata-wm-615033a3f0b3]

Also known as: UFO

Specifications

Movement

Spring Drive

Case Material

Stainless Steel

Case Width

36mm

Case Thickness

15.5mm

Lug Width

19mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

130m

Dial Color

Green

Jewels

21j

Frequency

28,800 bph

Power Reserve

63 hours

Year

1981

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