Seiko Cal. 6628 - 999

This Automatic model from 1979 features a 36mm Stainless Steel case. Powered by the 6628 caliber with 17j jewels beating at 21,600 bph, it delivers a 55 hours power reserve. [seikata-wm-1545bdf968f8]

Also known as: Helmet, Silverwave

Specifications

Movement

Automatic

Case Material

Stainless Steel

Case Width

36mm

Case Thickness

12.5mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

140m

Dial Color

Blue Sunburst

Jewels

17j

Frequency

21,600 bph

Power Reserve

55 hours

Year

1979

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