Seiko Cal. 6630 - 511

The 6630-511 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 6630 caliber with 26j jewels beating at 21,600 bph, it delivers a 43 hours power reserve. [seikata-wm-35d89f58b3ef]

Also known as: World Timer

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

42mm

Case Thickness

10.9mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

200m

Dial Color

Cream

Jewels

26j

Frequency

21,600 bph

Power Reserve

43 hours

Year

1988

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