Seiko Cal. 6647 - 424

The Seiko 6647-424 represents an important milestone in Seiko's 1982 lineup. With its 18mm lug width and 15.5mm profile, it sits comfortably on most wrists. [seikata-wm-2b8b8b3957cc]

Also known as: Flighty

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

46mm

Case Thickness

15.5mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

50m

Dial Color

Silver

Jewels

24j

Frequency

36,000 bph

Power Reserve

40 hours

Year

1982

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