Seiko Cal. 6630 - 781

Seiko 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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