Seiko Cal. 7178 - 748

This Spring Drive model from 1980 features a 46mm Stainless Steel case. The Rotating bezel and 46mm case give it a distinctive presence on the wrist. [seikata-wm-afd3d9875e78]

Also known as: Tuna, Crown

Specifications

Movement

Spring Drive

Case Material

Stainless Steel

Case Width

46mm

Case Thickness

12.9mm

Lug Width

20mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

180m

Dial Color

Navy

Jewels

23j

Frequency

36,000 bph

Power Reserve

65 hours

Year

1980

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