Seiko Cal. 6649 - 677

Released in 1975, the Cal. 6649 with design code 677 was part of Seiko's domestic market collection. With its 19mm lug width and 14.1mm profile, it sits comfortably on most wrists. [seikata-wm-cc7ff1c5df6d]

Also known as: Golden Tuna

Specifications

Movement

Spring Drive

Case Material

Stainless Steel

Case Width

35mm

Case Thickness

14.1mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

180m

Dial Color

Green

Jewels

36j

Frequency

28,800 bph

Power Reserve

39 hours

Year

1975

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