Seiko Cal. 4580 - 661

The 4580-661 is a sought-after Kinetic piece from Seiko's golden era. Powered by the 4580 caliber with 21j jewels beating at 28,800 bph, it delivers a 55 hours power reserve. [seikata-wm-4494da7b8380]

Also known as: Sportsmatic, Flighty

Specifications

Movement

Kinetic

Case Material

Stainless Steel

Case Width

39mm

Case Thickness

11.0mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

160m

Dial Color

Blue Sunburst

Jewels

21j

Frequency

28,800 bph

Power Reserve

55 hours

Year

1974

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