Seiko Cal. 7131 - 658

Seiko 7131-658

The 7131-658 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 7131 caliber with 35j jewels beating at 36,000 bph, it delivers a 72 hours power reserve. [seikata-wm-3b0af741c300]

Also known as: Sea Horse, Arnie

Specifications

Movement
Spring Drive
Case Material
Gold-Plated
Case Width
39mm
Case Thickness
15.3mm
Lug Width
20mm
Crystal
Acrylic
Bezel
Inner Rotating
Water Resistance
130m
Dial Color
Navy
Jewels
35j
Frequency
36,000 bph
Power Reserve
72 hours
Year
1990

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seikata-wm-3b0af741c300