Seiko Cal. 6644 - 490

This Spring Drive model from 1991 features a 39mm Gold-Plated case. It features a Champagne dial protected by a Sapphire crystal and offers 130m of water resistance. [seikata-wm-92f3b9ab5219]

Also known as: Silverwave, Sportsmatic

Specifications

Movement

Spring Drive

Case Material

Gold-Plated

Case Width

39mm

Case Thickness

12.0mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

130m

Dial Color

Champagne

Jewels

22j

Frequency

36,000 bph

Power Reserve

59 hours

Year

1991

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