Seiko Cal. 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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