Seiko Cal. 4578 - 387

The Seiko 4578-387 represents an important milestone in Seiko's 1983 lineup. With its 22mm lug width and 8.4mm profile, it sits comfortably on most wrists. [seikata-wm-6890fd6c4e3f]

Also known as: Rally, Crown

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

40mm

Case Thickness

8.4mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

140m

Dial Color

White

Jewels

35j

Frequency

21,600 bph

Power Reserve

66 hours

Year

1983

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