Seiko Cal. 4587 - 513

This Spring Drive model from 1977 features a 40mm Titanium case. The Inner Rotating bezel and 40mm case give it a distinctive presence on the wrist. [seikata-wm-ae292428ffc8]

Also known as: Sea Horse

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

40mm

Case Thickness

11.3mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

80m

Dial Color

Cream

Jewels

29j

Frequency

21,600 bph

Power Reserve

53 hours

Year

1977

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