Seiko Cal. 6663 - 839

The 6663-839 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 6663 caliber with 28j jewels beating at 36,000 bph, it delivers a 47 hours power reserve. [seikata-wm-3e90b21403e0]

Also known as: Panda, Sea Horse

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

46mm

Case Thickness

14.1mm

Lug Width

22mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

30m

Dial Color

Cream

Jewels

28j

Frequency

36,000 bph

Power Reserve

47 hours

Year

1976

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