Seiko Cal. 6640 - 167

Released in 1988, the Cal. 6640 with design code 167 was part of Seiko's domestic market collection. With its 18mm lug width and 11.8mm profile, it sits comfortably on most wrists. [seikata-wm-11ee5041ae34]

Also known as: Goldfeather, Arnie

Specifications

Movement

Kinetic

Case Material

Titanium

Case Width

44mm

Case Thickness

11.8mm

Lug Width

18mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

80m

Dial Color

Blue Sunburst

Jewels

18j

Frequency

28,800 bph

Power Reserve

42 hours

Year

1988

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