Seiko Cal. 4443 - 920

The Seiko 4443-920 represents an important milestone in Seiko's 1979 lineup. With its 21mm lug width and 15.0mm profile, it sits comfortably on most wrists. [seikata-wm-34418bf9ea27]

Also known as: Sportsmatic

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

37mm

Case Thickness

15.0mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

30m

Dial Color

Blue Sunburst

Jewels

26j

Frequency

36,000 bph

Power Reserve

49 hours

Year

1979

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