Seiko Cal. 4587 - 431

The Seiko 4587-431 represents an important milestone in Seiko's 1985 lineup. Powered by the 4587 caliber with 17j jewels beating at 36,000 bph, it delivers a 54 hours power reserve. [seikata-wm-88c7eb4051c0]

Also known as: Bullhead, Silverwave

Specifications

Movement

Quartz

Case Material

Stainless Steel

Case Width

35mm

Case Thickness

11.9mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

150m

Dial Color

Green

Jewels

17j

Frequency

36,000 bph

Power Reserve

54 hours

Year

1985

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