Seiko Cal. 4447 - 664

This Automatic model from 1987 features a 40mm Hardlex-Coated Steel case. It features a Green dial protected by a Hardlex crystal and offers 30m of water resistance. [seikata-wm-146bb71b4744]

Also known as: Silverwave, Sea Horse

Specifications

Movement

Automatic

Case Material

Hardlex-Coated Steel

Case Width

40mm

Case Thickness

13.9mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

30m

Dial Color

Green

Jewels

32j

Frequency

28,800 bph

Power Reserve

52 hours

Year

1987

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