Seiko Cal. 4587 - 728

This Spring Drive model from 1992 features a 38mm Titanium case. Powered by the 4587 caliber with 18j jewels beating at 28,800 bph, it delivers a 63 hours power reserve. [seikata-wm-c9d5e4d20a75]

Also known as: Tuna, Rally

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

38mm

Case Thickness

9.8mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

130m

Dial Color

Navy

Jewels

18j

Frequency

28,800 bph

Power Reserve

63 hours

Year

1992

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