Seiko Cal. 6639 - 283

Released in 1977, the Cal. 6639 with design code 283 was part of Seiko's domestic market collection. With its 20mm lug width and 9.0mm profile, it sits comfortably on most wrists. [seikata-wm-b9fda99da069]

Also known as: Panda, Golden Tuna

Specifications

Movement

Automatic

Case Material

Gold-Plated

Case Width

43mm

Case Thickness

9.0mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

70m

Dial Color

Blue Sunburst

Jewels

20j

Frequency

28,800 bph

Power Reserve

61 hours

Year

1977

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