Seiko Cal. 7180 - 375

Seiko 7180-375

This Spring Drive model from 1968 features a 37mm Gold-Plated case. Powered by the 7180 caliber with 35j jewels beating at 28,800 bph, it delivers a 67 hours power reserve. [seikata-wm-9d42b8fe9d76]

Also known as: Sumo, Tuna

Specifications

Movement
Spring Drive
Case Material
Gold-Plated
Case Width
37mm
Case Thickness
15.9mm
Lug Width
22mm
Crystal
Mineral
Bezel
Coin-Edge
Water Resistance
200m
Dial Color
Burgundy
Jewels
35j
Frequency
28,800 bph
Power Reserve
67 hours
Year
1968

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