Seiko Cal. 4487 - 403

The Seiko 4487-403 represents an important milestone in Seiko's 1987 lineup. With its 18mm lug width and 12.6mm profile, it sits comfortably on most wrists. [seikata-wm-a7c781bb1b56]

Also known as: Rally, Navigator

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

42mm

Case Thickness

12.6mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

40m

Dial Color

Cream

Jewels

22j

Frequency

21,600 bph

Power Reserve

38 hours

Year

1987

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