Seiko Cal. 4590 - 900

This Solar model from 1982 features a 37mm Two-Tone case. The Coin-Edge bezel and 37mm case give it a distinctive presence on the wrist. [seikata-wm-8ea954408d72]

Also known as: Sumo, World Timer

Specifications

Movement

Solar

Case Material

Two-Tone

Case Width

37mm

Case Thickness

13.3mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

170m

Dial Color

Green

Jewels

23j

Frequency

28,800 bph

Power Reserve

42 hours

Year

1982

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