Seiko Cal. 6628 - 571

The 6628-571 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 6628 caliber with 23j jewels beating at 28,800 bph, it delivers a 59 hours power reserve. [seikata-wm-7a71d3fc451b]

Also known as: Sumo, Sea Horse

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

45mm

Case Thickness

14.3mm

Lug Width

19mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

130m

Dial Color

Cream

Jewels

23j

Frequency

28,800 bph

Power Reserve

59 hours

Year

1992

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