Seiko Cal. 4520 - 649

The 4520-649 is a sought-after Spring Drive piece from Seiko's golden era. The Inner Rotating bezel and 34mm case give it a distinctive presence on the wrist. [seikata-wm-f4b3d91cd55d]

Specifications

Movement

Spring Drive

Case Material

Gold-Plated

Case Width

34mm

Case Thickness

14.2mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

120m

Dial Color

Navy

Jewels

19j

Frequency

28,800 bph

Power Reserve

65 hours

Year

1965

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