Seiko Cal. 6663 - 647

Seiko 6663-647

The Seiko 6663-647 represents an important milestone in Seiko's 1986 lineup. Powered by the 6663 caliber with 36j jewels beating at 36,000 bph, it delivers a 69 hours power reserve. [seikata-wm-10b97ba6f9c9]

Also known as: UFO, Golden Tuna

Specifications

Movement
Spring Drive
Case Material
Titanium
Case Width
34mm
Case Thickness
14.9mm
Lug Width
21mm
Crystal
Acrylic
Bezel
Coin-Edge
Water Resistance
50m
Dial Color
Black
Jewels
36j
Frequency
36,000 bph
Power Reserve
69 hours
Year
1986

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