Seiko Cal. 6631 - 800

This Kinetic model from 1977 features a 34mm Two-Tone case. With its 21mm lug width and 8.4mm profile, it sits comfortably on most wrists. [seikata-wm-0a73a0132818]

Also known as: UFO, Flighty

Specifications

Movement

Kinetic

Case Material

Two-Tone

Case Width

34mm

Case Thickness

8.4mm

Lug Width

21mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

200m

Dial Color

Green

Jewels

21j

Frequency

21,600 bph

Power Reserve

41 hours

Year

1977

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