Seiko Cal. 4591 - 990

Released in 1973, the Cal. 4591 with design code 990 was part of Seiko's domestic market collection. With its 18mm lug width and 11.6mm profile, it sits comfortably on most wrists. [seikata-wm-5f50dab2be0f]

Also known as: Sumo, Sea Horse

Specifications

Movement

Solar

Case Material

Gold-Plated

Case Width

39mm

Case Thickness

11.6mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

120m

Dial Color

Cream

Jewels

29j

Frequency

21,600 bph

Power Reserve

45 hours

Year

1973

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