Seiko Cal. 6631 - 430

The 6631-430 is a sought-after Kinetic piece from Seiko's golden era. It features a Blue Sunburst dial protected by a Sapphire crystal and offers 40m of water resistance. [seikata-wm-678fe8306721]

Also known as: Rally, Silverwave

Specifications

Movement

Kinetic

Case Material

Gold-Plated

Case Width

34mm

Case Thickness

11.7mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

40m

Dial Color

Blue Sunburst

Jewels

23j

Frequency

28,800 bph

Power Reserve

65 hours

Year

1983

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