Seiko Cal. 7098 - 657

Seiko 7098-657

Released in 1974, the Cal. 7098 with design code 657 was part of Seiko's domestic market collection. Powered by the 7098 caliber with 25j jewels beating at 21,600 bph, it delivers a 67 hours power reserve. [seikata-wm-b71e5f5fc2e5]

Also known as: Monster, Golden Tuna

Specifications

Movement
Spring Drive
Case Material
Stainless Steel
Case Width
34mm
Case Thickness
8.6mm
Lug Width
21mm
Crystal
Hardlex
Bezel
Inner Rotating
Water Resistance
180m
Dial Color
Green
Jewels
25j
Frequency
21,600 bph
Power Reserve
67 hours
Year
1974

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