Seiko Cal. 6640 - 724

The 6640-724 is a sought-after Kinetic piece from Seiko's golden era. It features a Blue Sunburst dial protected by a Hardlex crystal and offers 110m of water resistance. [seikata-wm-a80d459b0556]

Also known as: Samurai

Specifications

Movement

Kinetic

Case Material

Stainless Steel

Case Width

35mm

Case Thickness

10.2mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

110m

Dial Color

Blue Sunburst

Jewels

26j

Frequency

36,000 bph

Power Reserve

45 hours

Year

1997

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