Seiko Cal. 4588 - 730

This Spring Drive model from 1971 features a 35mm Stainless Steel case. The Coin-Edge bezel and 35mm case give it a distinctive presence on the wrist. [seikata-wm-debdcc05c568]

Also known as: Helmet, Sportsmatic

Specifications

Movement

Spring Drive

Case Material

Stainless Steel

Case Width

35mm

Case Thickness

13.4mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

120m

Dial Color

Green

Jewels

31j

Frequency

28,800 bph

Power Reserve

38 hours

Year

1971

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