Seiko Cal. 4557 - 647

The Seiko 4557-647 represents an important milestone in Seiko's 1971 lineup. The Inner Rotating bezel and 40mm case give it a distinctive presence on the wrist. [seikata-wm-21323c51d7c2]

Also known as: Goldfeather, Arnie

Specifications

Movement

Kinetic

Case Material

Two-Tone

Case Width

40mm

Case Thickness

8.5mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

90m

Dial Color

Green

Jewels

19j

Frequency

21,600 bph

Power Reserve

57 hours

Year

1971

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