Seiko Cal. 6331 - 679

The Seiko 6331-679 represents an important milestone in Seiko's 1996 lineup. Powered by the 6331 caliber with 33j jewels beating at 36,000 bph, it delivers a 67 hours power reserve. [seikata-wm-d59f21f5bb12]

Also known as: Helmet, Arnie

Specifications

Movement

Hand-Winding

Case Material

Titanium

Case Width

37mm

Case Thickness

15.6mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

70m

Dial Color

Black

Jewels

33j

Frequency

36,000 bph

Power Reserve

67 hours

Year

1996

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