Seiko Cal. 6647 - 451

The 6647-451 is a sought-after Kinetic piece from Seiko's golden era. Powered by the 6647 caliber with 28j jewels beating at 36,000 bph, it delivers a 66 hours power reserve. [seikata-wm-a1e8837aa226]

Also known as: Flighty

Specifications

Movement

Kinetic

Case Material

Hardlex-Coated Steel

Case Width

40mm

Case Thickness

10.6mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

120m

Dial Color

Cream

Jewels

28j

Frequency

36,000 bph

Power Reserve

66 hours

Year

1981

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