Seiko Cal. 6630 - 781

The 6630-781 is a sought-after Quartz piece from Seiko's golden era. Powered by the 6630 caliber with 34j jewels beating at 28,800 bph, it delivers a 59 hours power reserve. [seikata-wm-b032d2a75ec8]

Also known as: Monster, Sea Horse

Specifications

Movement

Quartz

Case Material

Hardlex-Coated Steel

Case Width

46mm

Case Thickness

14.0mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

80m

Dial Color

Champagne

Jewels

34j

Frequency

28,800 bph

Power Reserve

59 hours

Year

1988

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