Seiko Cal. 4487 - 380

This Spring Drive model from 1965 features a 39mm Hardlex-Coated Steel case. It features a Cream dial protected by a Hardlex crystal and offers 170m of water resistance. [seikata-wm-32a881a87956]

Also known as: Bullhead, Arnie

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

39mm

Case Thickness

10.7mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

170m

Dial Color

Cream

Jewels

25j

Frequency

28,800 bph

Power Reserve

55 hours

Year

1965

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