Seiko Cal. 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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