Seiko Cal. 4576 - 570

The Seiko 4576-570 represents an important milestone in Seiko's 1980 lineup. With its 18mm lug width and 10.3mm profile, it sits comfortably on most wrists. [seikata-wm-1885cf8704a5]

Also known as: Sumo, Helmet

Specifications

Movement

Kinetic

Case Material

Hardlex-Coated Steel

Case Width

36mm

Case Thickness

10.3mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

190m

Dial Color

Black

Jewels

20j

Frequency

36,000 bph

Power Reserve

69 hours

Year

1980

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