Seiko Cal. 7131 - 838

Seiko 7131-838

The 7131-838 is a sought-after Hand-Winding piece from Seiko's golden era. The Inner Rotating bezel and 38mm case give it a distinctive presence on the wrist. [seikata-wm-6cf68f697b1b]

Also known as: Golden Tuna

Specifications

Movement
Hand-Winding
Case Material
Titanium
Case Width
38mm
Case Thickness
13.0mm
Lug Width
20mm
Crystal
Sapphire
Bezel
Inner Rotating
Water Resistance
30m
Dial Color
Black
Jewels
27j
Frequency
21,600 bph
Power Reserve
50 hours
Year
1987

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