Seiko Cal. 6331 - 137

The Seiko 6331-137 represents an important milestone in Seiko's 1983 lineup. Powered by the 6331 caliber with 25j jewels beating at 36,000 bph, it delivers a 72 hours power reserve. [seikata-wm-7822254f6e9e]

Also known as: Arnie

Specifications

Movement

Quartz

Case Material

Stainless Steel

Case Width

44mm

Case Thickness

8.1mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

150m

Dial Color

Blue Sunburst

Jewels

25j

Frequency

36,000 bph

Power Reserve

72 hours

Year

1983

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