Seiko Cal. 4576 - 639

The 4576-639 is a sought-after Spring Drive piece from Seiko's golden era. The Rotating bezel and 35mm case give it a distinctive presence on the wrist. [seikata-wm-412dc4851ebf]

Also known as: UFO

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

35mm

Case Thickness

11.8mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

110m

Dial Color

White

Jewels

17j

Frequency

28,800 bph

Power Reserve

66 hours

Year

1966

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