Seiko Cal. 4557 - 803

The Seiko 4557-803 represents an important milestone in Seiko's 1981 lineup. The Coin-Edge bezel and 42mm case give it a distinctive presence on the wrist. [seikata-wm-e3618500ed4b]

Also known as: UFO, Crown

Specifications

Movement

Hand-Winding

Case Material

Hardlex-Coated Steel

Case Width

42mm

Case Thickness

11.9mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

200m

Dial Color

Black

Jewels

26j

Frequency

21,600 bph

Power Reserve

48 hours

Year

1981

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