Seiko Cal. 4580 - 784

The Seiko 4580-784 represents an important milestone in Seiko's 1966 lineup. Powered by the 4580 caliber with 29j jewels beating at 21,600 bph, it delivers a 43 hours power reserve. [seikata-wm-03afaed1ac8b]

Also known as: Bullhead, Bellmatic

Specifications

Movement

Automatic

Case Material

Stainless Steel

Case Width

41mm

Case Thickness

12.3mm

Lug Width

22mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

120m

Dial Color

Blue Sunburst

Jewels

29j

Frequency

21,600 bph

Power Reserve

43 hours

Year

1966

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