Seiko Cal. 4427 - 446

The Seiko 4427-446 represents an important milestone in Seiko's 1989 lineup. The Rotating bezel and 35mm case give it a distinctive presence on the wrist. [seikata-wm-abd0c3cd157d]

Also known as: Tuna, Sportsmatic

Specifications

Movement

Kinetic

Case Material

Two-Tone

Case Width

35mm

Case Thickness

15.8mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

30m

Dial Color

Black

Jewels

19j

Frequency

36,000 bph

Power Reserve

66 hours

Year

1989

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