Seiko Cal. 6664 - 431

This Hand-Winding model from 1998 features a 44mm Hardlex-Coated Steel case. It features a Green dial protected by a Hardlex crystal and offers 120m of water resistance. [seikata-wm-49e1add9deb2]

Also known as: Silverwave, Sportsmatic

Specifications

Movement

Hand-Winding

Case Material

Hardlex-Coated Steel

Case Width

44mm

Case Thickness

14.3mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

120m

Dial Color

Green

Jewels

30j

Frequency

21,600 bph

Power Reserve

38 hours

Year

1998

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