Seiko Cal. 6663 - 854

The 6663-854 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 6663 caliber with 23j jewels beating at 28,800 bph, it delivers a 47 hours power reserve. [seikata-wm-6071bdc71120]

Also known as: Rally

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

34mm

Case Thickness

13.9mm

Lug Width

21mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

180m

Dial Color

Blue Sunburst

Jewels

23j

Frequency

28,800 bph

Power Reserve

47 hours

Year

1971

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