Seiko Cal. 6647 - 220

The Seiko 6647-220 represents an important milestone in Seiko's 1978 lineup. With its 19mm lug width and 11.6mm profile, it sits comfortably on most wrists. [seikata-wm-84e55dd80776]

Also known as: Arnie

Specifications

Movement

Spring Drive

Case Material

Gold-Plated

Case Width

41mm

Case Thickness

11.6mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

100m

Dial Color

Cream

Jewels

21j

Frequency

28,800 bph

Power Reserve

41 hours

Year

1978

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