Seiko Cal. 6647 - 580

Released in 1997, the Cal. 6647 with design code 580 was part of Seiko's domestic market collection. With its 19mm lug width and 15.9mm profile, it sits comfortably on most wrists. [seikata-wm-de79cfa17b43]

Also known as: Turtle, Bullhead

Specifications

Movement

Hand-Winding

Case Material

Titanium

Case Width

40mm

Case Thickness

15.9mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

40m

Dial Color

Champagne

Jewels

28j

Frequency

21,600 bph

Power Reserve

64 hours

Year

1997

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