Seiko Cal. 4580 - 643

Released in 1986, the Cal. 4580 with design code 643 was part of Seiko's domestic market collection. Powered by the 4580 caliber with 21j jewels beating at 21,600 bph, it delivers a 55 hours power reserve. [seikata-wm-f62bc065bde6]

Also known as: Sumo, Pogue

Specifications

Movement

Quartz

Case Material

Two-Tone

Case Width

38mm

Case Thickness

11.4mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

180m

Dial Color

Silver

Jewels

21j

Frequency

21,600 bph

Power Reserve

55 hours

Year

1986

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