Seiko Cal. 4578 - 181

This Hand-Winding model from 1985 features a 34mm PVD Black case. With its 19mm lug width and 12.7mm profile, it sits comfortably on most wrists. [seikata-wm-7cb0c7161faf]

Also known as: Sumo

Specifications

Movement

Hand-Winding

Case Material

PVD Black

Case Width

34mm

Case Thickness

12.7mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

40m

Dial Color

Blue Sunburst

Jewels

17j

Frequency

36,000 bph

Power Reserve

46 hours

Year

1985

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