Seiko Cal. 4487 - 715

The Seiko 4487-715 represents an important milestone in Seiko's 1985 lineup. The Fixed bezel and 34mm case give it a distinctive presence on the wrist. [seikata-wm-102aa9900749]

Also known as: Bullhead, Navigator

Specifications

Movement

Hand-Winding

Case Material

Two-Tone

Case Width

34mm

Case Thickness

13.8mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

40m

Dial Color

Cream

Jewels

22j

Frequency

36,000 bph

Power Reserve

57 hours

Year

1985

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