Seiko Cal. 6630 - 887

The 6630-887 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 6630 caliber with 22j jewels beating at 28,800 bph, it delivers a 70 hours power reserve. [seikata-wm-399a8ef057dd]

Also known as: Samurai

Specifications

Movement

Spring Drive

Case Material

Stainless Steel

Case Width

40mm

Case Thickness

9.9mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

60m

Dial Color

Cream

Jewels

22j

Frequency

28,800 bph

Power Reserve

70 hours

Year

1972

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