Seiko Cal. 7131 - 513

Seiko 7131-513

The 7131-513 is a sought-after Automatic piece from Seiko's golden era. The Rotating bezel and 36mm case give it a distinctive presence on the wrist. [seikata-wm-778b70e77ce8]

Also known as: Sumo, Navigator

Specifications

Movement
Automatic
Case Material
Titanium
Case Width
36mm
Case Thickness
10.4mm
Lug Width
20mm
Crystal
Mineral
Bezel
Rotating
Water Resistance
100m
Dial Color
White
Jewels
27j
Frequency
36,000 bph
Power Reserve
59 hours
Year
1999

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