Seiko Cal. 7031 - 231

Seiko 7031-231

The Seiko 7031-231 represents an important milestone in Seiko's 1999 lineup. Powered by the 7031 caliber with 29j jewels beating at 28,800 bph, it delivers a 70 hours power reserve. [seikata-wm-f414a82883f8]

Also known as: Sumo, Arnie

Specifications

Movement
Quartz
Case Material
Titanium
Case Width
39mm
Case Thickness
10.0mm
Lug Width
20mm
Crystal
Mineral
Bezel
Bidirectional
Water Resistance
130m
Dial Color
Cream
Jewels
29j
Frequency
28,800 bph
Power Reserve
70 hours
Year
1999

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