Seiko Cal. 4581 - 492

Released in 1979, the Cal. 4581 with design code 492 was part of Seiko's domestic market collection. With its 22mm lug width and 13.1mm profile, it sits comfortably on most wrists. [seikata-wm-793da850bfa6]

Also known as: Sumo

Specifications

Movement

Quartz

Case Material

PVD Black

Case Width

41mm

Case Thickness

13.1mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

140m

Dial Color

Green

Jewels

36j

Frequency

21,600 bph

Power Reserve

36 hours

Year

1979

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