Seiko Cal. 4421 - 521

The Seiko 4421-521 represents an important milestone in Seiko's 1980 lineup. The Fixed bezel and 40mm case give it a distinctive presence on the wrist. [seikata-wm-3308c0bc6367]

Also known as: Sportsmatic, Flighty

Specifications

Movement

Automatic

Case Material

Titanium

Case Width

40mm

Case Thickness

11.5mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

160m

Dial Color

Blue Sunburst

Jewels

22j

Frequency

36,000 bph

Power Reserve

47 hours

Year

1980

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