Seiko Cal. 6631 - 465

Released in 1999, the Cal. 6631 with design code 465 was part of Seiko's domestic market collection. It features a Burgundy dial protected by a Hardlex crystal and offers 30m of water resistance. [seikata-wm-9df4905824ee]

Also known as: Bullhead, Golden Tuna

Specifications

Movement

Automatic

Case Material

Titanium

Case Width

41mm

Case Thickness

11.8mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

30m

Dial Color

Burgundy

Jewels

33j

Frequency

28,800 bph

Power Reserve

37 hours

Year

1999

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