Seiko Cal. 7131 - 123

Seiko 7131-123

The 7131-123 is a sought-after Hand-Winding piece from Seiko's golden era. Powered by the 7131 caliber with 35j jewels beating at 28,800 bph, it delivers a 36 hours power reserve. [seikata-wm-90db6817029f]

Also known as: Golden Tuna

Specifications

Movement
Hand-Winding
Case Material
Hardlex-Coated Steel
Case Width
46mm
Case Thickness
12.6mm
Lug Width
21mm
Crystal
Acrylic
Bezel
Inner Rotating
Water Resistance
160m
Dial Color
Black
Jewels
35j
Frequency
28,800 bph
Power Reserve
36 hours
Year
1986

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seikata-wm-90db6817029f