Seiko Cal. 4427 - 377

The Seiko 4427-377 represents an important milestone in Seiko's 1983 lineup. With its 22mm lug width and 14.5mm profile, it sits comfortably on most wrists. [seikata-wm-6907c28ebed5]

Also known as: UFO, Sportsmatic

Specifications

Movement

Kinetic

Case Material

Hardlex-Coated Steel

Case Width

42mm

Case Thickness

14.5mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

50m

Dial Color

Navy

Jewels

19j

Frequency

36,000 bph

Power Reserve

66 hours

Year

1983

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