Seiko Cal. 7031 - 232

Seiko 7031-232

The Seiko 7031-232 represents an important milestone in Seiko's 1978 lineup. Powered by the 7031 caliber with 31j jewels beating at 36,000 bph, it delivers a 38 hours power reserve. [seikata-wm-1442c21c4e7b]

Also known as: Sumo, Flighty

Specifications

Movement
Spring Drive
Case Material
Two-Tone
Case Width
46mm
Case Thickness
15.2mm
Lug Width
18mm
Crystal
Mineral
Bezel
Bidirectional
Water Resistance
110m
Dial Color
Silver
Jewels
31j
Frequency
36,000 bph
Power Reserve
38 hours
Year
1978

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