Seiko Cal. 6178 - 870

This Spring Drive model from 1986 features a 43mm Stainless Steel case. Powered by the 6178 caliber with 25j jewels beating at 28,800 bph, it delivers a 39 hours power reserve. [seikata-wm-2f6383affc27]

Also known as: Tuna, Silverwave

Specifications

Movement

Spring Drive

Case Material

Stainless Steel

Case Width

43mm

Case Thickness

11.5mm

Lug Width

19mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

190m

Dial Color

Cream

Jewels

25j

Frequency

28,800 bph

Power Reserve

39 hours

Year

1986

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