Seiko Cal. 4478 - 557

This Kinetic model from 1999 features a 41mm Stainless Steel case. With its 20mm lug width and 10.3mm profile, it sits comfortably on most wrists. [seikata-wm-70e19d35d37b]

Also known as: Bullhead, Helmet

Specifications

Movement

Kinetic

Case Material

Stainless Steel

Case Width

41mm

Case Thickness

10.3mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

170m

Dial Color

Black

Jewels

21j

Frequency

36,000 bph

Power Reserve

51 hours

Year

1999

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