Seiko Cal. 6649 - 687

Seiko 6649-687

The Seiko 6649-687 represents an important milestone in Seiko's 1982 lineup. Powered by the 6649 caliber with 32j jewels beating at 28,800 bph, it delivers a 46 hours power reserve. [seikata-wm-91931dc106c5]

Also known as: Golden Tuna

Specifications

Movement
Spring Drive
Case Material
PVD Black
Case Width
37mm
Case Thickness
14.4mm
Lug Width
18mm
Crystal
Mineral
Bezel
Inner Rotating
Water Resistance
120m
Dial Color
Green
Jewels
32j
Frequency
28,800 bph
Power Reserve
46 hours
Year
1982

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seikata-wm-91931dc106c5