Seiko Cal. 4521 - 924

The Seiko 4521-924 represents an important milestone in Seiko's 1965 lineup. The Rotating bezel and 35mm case give it a distinctive presence on the wrist. [seikata-wm-c64ed0b2438b]

Also known as: Crown, Arnie

Specifications

Movement

Hand-Winding

Case Material

PVD Black

Case Width

35mm

Case Thickness

9.9mm

Lug Width

18mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

70m

Dial Color

Champagne

Jewels

26j

Frequency

28,800 bph

Power Reserve

65 hours

Year

1965

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