Seiko Cal. 4457 - 566

The Seiko 4457-566 represents an important milestone in Seiko's 1987 lineup. The Inner Rotating bezel and 37mm case give it a distinctive presence on the wrist. [seikata-wm-9729a17f1cb0]

Specifications

Movement

Hand-Winding

Case Material

PVD Black

Case Width

37mm

Case Thickness

12.0mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

80m

Dial Color

Blue Sunburst

Jewels

36j

Frequency

21,600 bph

Power Reserve

66 hours

Year

1987

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