Seiko Cal. 7178 - 145

The Seiko 7178-145 represents an important milestone in Seiko's 1979 lineup. The Fixed bezel and 40mm case give it a distinctive presence on the wrist. [seikata-wm-5fcd28191bee]

Also known as: Sumo, Baby Tuna

Specifications

Movement

Automatic

Case Material

Two-Tone

Case Width

40mm

Case Thickness

12.0mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

170m

Dial Color

White

Jewels

36j

Frequency

28,800 bph

Power Reserve

51 hours

Year

1979

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