Seiko Cal. 4590 - 915

Released in 1972, the Cal. 4590 with design code 915 was part of Seiko's domestic market collection. The Inner Rotating bezel and 43mm case give it a distinctive presence on the wrist. [seikata-wm-cd025bfbcb80]

Also known as: Sumo

Specifications

Movement

Hand-Winding

Case Material

Titanium

Case Width

43mm

Case Thickness

11.9mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

90m

Dial Color

Champagne

Jewels

30j

Frequency

36,000 bph

Power Reserve

41 hours

Year

1972

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