Seiko Cal. 4427 - 577

The Seiko 4427-577 represents an important milestone in Seiko's 1991 lineup. With its 18mm lug width and 14.8mm profile, it sits comfortably on most wrists. [seikata-wm-e4b75cb6ca9e]

Also known as: World Timer

Specifications

Movement

Kinetic

Case Material

Stainless Steel

Case Width

39mm

Case Thickness

14.8mm

Lug Width

18mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

200m

Dial Color

Blue Sunburst

Jewels

22j

Frequency

28,800 bph

Power Reserve

72 hours

Year

1991

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