Seiko Cal. 4587 - 903

The Seiko 4587-903 represents an important milestone in Seiko's 1985 lineup. The Coin-Edge bezel and 39mm case give it a distinctive presence on the wrist. [seikata-wm-d42462560181]

Also known as: Helmet, Crown

Specifications

Movement

Hand-Winding

Case Material

Titanium

Case Width

39mm

Case Thickness

8.1mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

110m

Dial Color

Blue Sunburst

Jewels

36j

Frequency

28,800 bph

Power Reserve

46 hours

Year

1985

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