Seiko Cal. 4557 - 431

Released in 1966, the Cal. 4557 with design code 431 was part of Seiko's domestic market collection. The Bidirectional bezel and 38mm case give it a distinctive presence on the wrist. [seikata-wm-b77986aa2dbb]

Also known as: Baby Tuna, Emperor

Specifications

Movement

Solar

Case Material

Gold-Plated

Case Width

38mm

Case Thickness

10.0mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

170m

Dial Color

Green

Jewels

30j

Frequency

28,800 bph

Power Reserve

36 hours

Year

1966

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