Seiko Cal. 7031 - 121

Seiko 7031-121

The Seiko 7031-121 represents an important milestone in Seiko's 1975 lineup. Powered by the 7031 caliber with 26j jewels beating at 21,600 bph, it delivers a 51 hours power reserve. [seikata-wm-72cc30938225]

Also known as: Bellmatic, Arnie

Specifications

Movement
Automatic
Case Material
PVD Black
Case Width
37mm
Case Thickness
12.0mm
Lug Width
19mm
Crystal
Mineral
Bezel
Bidirectional
Water Resistance
80m
Dial Color
Cream
Jewels
26j
Frequency
21,600 bph
Power Reserve
51 hours
Year
1975

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seikata-wm-72cc30938225