Seiko Cal. 6663 - 430

The 6663-430 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 6663 caliber with 22j jewels beating at 21,600 bph, it delivers a 38 hours power reserve. [seikata-wm-22e3bd7fc3ec]

Also known as: Navigator, Baby Tuna

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

36mm

Case Thickness

13.0mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

90m

Dial Color

Cream

Jewels

22j

Frequency

21,600 bph

Power Reserve

38 hours

Year

1967

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