Seiko Cal. 6331 - 137

Seiko 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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