Seiko Cal. 6331 - 799

The 6331-799 is a sought-after Quartz piece from Seiko's golden era. It features a Blue Sunburst dial protected by a Hardlex crystal and offers 140m of water resistance. [seikata-wm-ec92310744d3]

Also known as: Rally, Sportsmatic

Specifications

Movement

Quartz

Case Material

Titanium

Case Width

36mm

Case Thickness

9.5mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

140m

Dial Color

Blue Sunburst

Jewels

32j

Frequency

28,800 bph

Power Reserve

45 hours

Year

1986

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