Seiko Cal. 4557 - 766

The 4557-766 is a sought-after Spring Drive piece from Seiko's golden era. The Inner Rotating bezel and 40mm case give it a distinctive presence on the wrist. [seikata-wm-418d15b4e519]

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

40mm

Case Thickness

12.9mm

Lug Width

21mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

50m

Dial Color

Champagne

Jewels

32j

Frequency

21,600 bph

Power Reserve

48 hours

Year

1978

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