Seiko Cal. 7031 - 909

Seiko 7031-909

The 7031-909 is a sought-after Automatic piece from Seiko's golden era. Powered by the 7031 caliber with 25j jewels beating at 28,800 bph, it delivers a 71 hours power reserve. [seikata-wm-a7a28313c1fb]

Specifications

Movement
Automatic
Case Material
Hardlex-Coated Steel
Case Width
38mm
Case Thickness
12.5mm
Lug Width
18mm
Crystal
Mineral
Bezel
Rotating
Water Resistance
130m
Dial Color
Green
Jewels
25j
Frequency
28,800 bph
Power Reserve
71 hours
Year
1982

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