Seiko Cal. 4428 - 566

The Seiko 4428-566 represents an important milestone in Seiko's 1971 lineup. The Coin-Edge bezel and 46mm case give it a distinctive presence on the wrist. [seikata-wm-85ae804bc4fc]

Specifications

Movement

Automatic

Case Material

Gold-Plated

Case Width

46mm

Case Thickness

12.5mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

140m

Dial Color

Green

Jewels

34j

Frequency

28,800 bph

Power Reserve

69 hours

Year

1971

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