Seiko Cal. 4521 - 927

The 4521-927 is a sought-after Automatic piece from Seiko's golden era. The Inner Rotating bezel and 35mm case give it a distinctive presence on the wrist. [seikata-wm-3db62efd2e0f]

Also known as: Arnie

Specifications

Movement

Automatic

Case Material

PVD Black

Case Width

35mm

Case Thickness

13.8mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

200m

Dial Color

Green

Jewels

20j

Frequency

28,800 bph

Power Reserve

40 hours

Year

1966

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