Seiko Cal. 4557 - 784

The Seiko 4557-784 represents an important milestone in Seiko's 1966 lineup. The Coin-Edge bezel and 43mm case give it a distinctive presence on the wrist. [seikata-wm-d3ddd02fc9c3]

Specifications

Movement

Hand-Winding

Case Material

Hardlex-Coated Steel

Case Width

43mm

Case Thickness

13.1mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

140m

Dial Color

Cream

Jewels

32j

Frequency

21,600 bph

Power Reserve

68 hours

Year

1966

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