Seiko Cal. 6663 - 938

The 6663-938 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 6663 caliber with 26j jewels beating at 36,000 bph, it delivers a 40 hours power reserve. [seikata-wm-2e5dfd5ab053]

Also known as: Goldfeather, Flighty

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

35mm

Case Thickness

10.4mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

50m

Dial Color

Cream

Jewels

26j

Frequency

36,000 bph

Power Reserve

40 hours

Year

1996

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