Seiko Cal. 6646 - 409

The 6646-409 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 6646 caliber with 19j jewels beating at 28,800 bph, it delivers a 43 hours power reserve. [seikata-wm-cf777f9233a4]

Also known as: Flighty

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

35mm

Case Thickness

13.5mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

90m

Dial Color

Champagne

Jewels

19j

Frequency

28,800 bph

Power Reserve

43 hours

Year

1970

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