Seiko Cal. 4581 - 629

This Spring Drive model from 1989 features a 44mm PVD Black case. With its 18mm lug width and 13.1mm profile, it sits comfortably on most wrists. [seikata-wm-1a50b0371f47]

Also known as: Tuna

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

44mm

Case Thickness

13.1mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

50m

Dial Color

Navy

Jewels

18j

Frequency

36,000 bph

Power Reserve

41 hours

Year

1989

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