Seiko Cal. 4583 - 370

This Solar model from 1981 features a 40mm Two-Tone case. Powered by the 4583 caliber with 23j jewels beating at 28,800 bph, it delivers a 52 hours power reserve. [seikata-wm-0aa850482919]

Also known as: Sumo, Crown

Specifications

Movement

Solar

Case Material

Two-Tone

Case Width

40mm

Case Thickness

15.3mm

Lug Width

21mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

110m

Dial Color

Navy

Jewels

23j

Frequency

28,800 bph

Power Reserve

52 hours

Year

1981

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