Seiko Cal. 7178 - 109

The Seiko 7178-109 represents an important milestone in Seiko's 1980 lineup. The Coin-Edge bezel and 45mm case give it a distinctive presence on the wrist. [seikata-wm-e0d419900230]

Also known as: Tuna, Silverwave

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

45mm

Case Thickness

11.5mm

Lug Width

18mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

140m

Dial Color

Cream

Jewels

36j

Frequency

36,000 bph

Power Reserve

65 hours

Year

1980

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