Seiko Cal. 4477 - 521

The Seiko 4477-521 represents an important milestone in Seiko's 1973 lineup. With its 21mm lug width and 13.7mm profile, it sits comfortably on most wrists. [seikata-wm-37b68a505b10]

Also known as: Goldfeather, Sportsmatic

Specifications

Movement

Hand-Winding

Case Material

Titanium

Case Width

34mm

Case Thickness

13.7mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

80m

Dial Color

Green

Jewels

24j

Frequency

36,000 bph

Power Reserve

41 hours

Year

1973

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