Seiko Cal. 7131 - 513

Seiko 7131-513

The 7131-513 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 7131 caliber with 28j jewels beating at 21,600 bph, it delivers a 61 hours power reserve. [seikata-wm-5dd7461a2b2c]

Also known as: Samurai, Flighty

Specifications

Movement
Spring Drive
Case Material
Titanium
Case Width
43mm
Case Thickness
12.0mm
Lug Width
19mm
Crystal
Acrylic
Bezel
Rotating
Water Resistance
190m
Dial Color
White
Jewels
28j
Frequency
21,600 bph
Power Reserve
61 hours
Year
1970

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