Seiko Cal. 6640 - 387

This Quartz model from 1991 features a 39mm Stainless Steel case. It features a Burgundy dial protected by a Sapphire crystal and offers 50m of water resistance. [seikata-wm-917d83574e28]

Also known as: Rally, Arnie

Specifications

Movement

Quartz

Case Material

Stainless Steel

Case Width

39mm

Case Thickness

10.7mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

50m

Dial Color

Burgundy

Jewels

21j

Frequency

28,800 bph

Power Reserve

72 hours

Year

1991

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