Seiko Cal. 7131 - 988

Seiko 7131-988

The 7131-988 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 62 hours power reserve. [seikata-wm-9cc8414442e8]

Also known as: Monster, Golden Tuna

Specifications

Movement
Spring Drive
Case Material
Gold-Plated
Case Width
38mm
Case Thickness
14.9mm
Lug Width
18mm
Crystal
Sapphire
Bezel
Fixed
Water Resistance
40m
Dial Color
Cream
Jewels
28j
Frequency
21,600 bph
Power Reserve
62 hours
Year
1986

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seikata-wm-9cc8414442e8