Seiko Cal. 6630 - 778

Seiko 6630-778

The 6630-778 is a sought-after Automatic piece from Seiko's golden era. Powered by the 6630 caliber with 18j jewels beating at 28,800 bph, it delivers a 48 hours power reserve. [seikata-wm-82a990229fef]

Also known as: Helmet, Sea Horse

Specifications

Movement
Automatic
Case Material
Hardlex-Coated Steel
Case Width
45mm
Case Thickness
14.3mm
Lug Width
21mm
Crystal
Acrylic
Bezel
Rotating
Water Resistance
130m
Dial Color
Blue Sunburst
Jewels
18j
Frequency
28,800 bph
Power Reserve
48 hours
Year
1973

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seikata-wm-82a990229fef