Seiko Cal. 6647 - 936

Seiko 6647-936

The 6647-936 is a sought-after Kinetic piece from Seiko's golden era. Powered by the 6647 caliber with 32j jewels beating at 21,600 bph, it delivers a 69 hours power reserve. [seikata-wm-787ebc823708]

Also known as: Crown, Golden Tuna

Specifications

Movement
Kinetic
Case Material
Hardlex-Coated Steel
Case Width
43mm
Case Thickness
13.4mm
Lug Width
18mm
Crystal
Hardlex
Bezel
Inner Rotating
Water Resistance
50m
Dial Color
Blue Sunburst
Jewels
32j
Frequency
21,600 bph
Power Reserve
69 hours
Year
1983

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seikata-wm-787ebc823708