Seiko Cal. 6635 - 580

The Seiko 6635-580 represents an important milestone in Seiko's 1982 lineup. Powered by the 6635 caliber with 28j jewels beating at 28,800 bph, it delivers a 72 hours power reserve. [seikata-wm-74df125cdaac]

Also known as: Helmet, Goldfeather

Specifications

Movement

Kinetic

Case Material

Stainless Steel

Case Width

46mm

Case Thickness

9.2mm

Lug Width

18mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

110m

Dial Color

Burgundy

Jewels

28j

Frequency

28,800 bph

Power Reserve

72 hours

Year

1982

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