Seiko Cal. 4593 - 721

The Seiko 4593-721 represents an important milestone in Seiko's 1968 lineup. The Inner Rotating bezel and 35mm case give it a distinctive presence on the wrist. [seikata-wm-af35bd25901a]

Also known as: Sea Horse, Crown

Specifications

Movement

Quartz

Case Material

Stainless Steel

Case Width

35mm

Case Thickness

8.8mm

Lug Width

22mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

80m

Dial Color

Blue Sunburst

Jewels

18j

Frequency

36,000 bph

Power Reserve

57 hours

Year

1968

Related Models

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• Seiko 6293-335
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• Seiko 4573-559
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• Seiko 0783-816
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• Seiko 5228-636
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• Seiko 4593-469