Seiko Cal. 6628 - 581

Seiko 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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