Seiko Cal. 6628 - 581

The 6628-581 is a sought-after Kinetic piece from Seiko's golden era. Powered by the 6628 caliber with 30j jewels beating at 21,600 bph, it delivers a 53 hours power reserve. [seikata-wm-7bd529d5cb52]

Also known as: Sumo, Emperor

Specifications

Movement

Kinetic

Case Material

Stainless Steel

Case Width

43mm

Case Thickness

11.9mm

Lug Width

20mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

180m

Dial Color

Black

Jewels

30j

Frequency

21,600 bph

Power Reserve

53 hours

Year

1971

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