Seiko Cal. 4413 - 740

The Seiko 4413-740 represents an important milestone in Seiko's 1971 lineup. With its 18mm lug width and 9.1mm profile, it sits comfortably on most wrists. [seikata-wm-f4c486237ef9]

Also known as: Sportsmatic, Emperor

Specifications

Movement

Automatic

Case Material

PVD Black

Case Width

43mm

Case Thickness

9.1mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

30m

Dial Color

Blue Sunburst

Jewels

18j

Frequency

28,800 bph

Power Reserve

46 hours

Year

1971

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