Seiko Cal. 4487 - 666

This Spring Drive model from 1988 features a 35mm Gold-Plated case. The Coin-Edge bezel and 35mm case give it a distinctive presence on the wrist. [seikata-wm-65d48f099ebd]

Also known as: World Timer, Navigator

Specifications

Movement

Spring Drive

Case Material

Gold-Plated

Case Width

35mm

Case Thickness

14.7mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

130m

Dial Color

Black

Jewels

28j

Frequency

36,000 bph

Power Reserve

61 hours

Year

1988

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