Seiko Cal. 4442 - 575

This Spring Drive model from 1981 features a 41mm Stainless Steel case. With its 20mm lug width and 11.6mm profile, it sits comfortably on most wrists. [seikata-wm-b78c4f7529e3]

Also known as: Sumo, Flighty

Specifications

Movement

Spring Drive

Case Material

Stainless Steel

Case Width

41mm

Case Thickness

11.6mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

130m

Dial Color

Black

Jewels

19j

Frequency

28,800 bph

Power Reserve

66 hours

Year

1981

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