Seiko Cal. 7131 - 902

Seiko 7131-902

The Seiko 7131-902 represents an important milestone in Seiko's 1972 lineup. Powered by the 7131 caliber with 35j jewels beating at 28,800 bph, it delivers a 60 hours power reserve. [seikata-wm-00ed4c775ed0]

Also known as: Helmet

Specifications

Movement
Solar
Case Material
Titanium
Case Width
36mm
Case Thickness
8.6mm
Lug Width
18mm
Crystal
Acrylic
Bezel
Rotating
Water Resistance
150m
Dial Color
Black
Jewels
35j
Frequency
28,800 bph
Power Reserve
60 hours
Year
1972

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