Seiko Cal. 6178 - 104

The Seiko 6178-104 represents an important milestone in Seiko's 1977 lineup. With its 18mm lug width and 10.9mm profile, it sits comfortably on most wrists. [seikata-wm-c8d254f9a17b]

Also known as: Sumo

Specifications

Movement

Automatic

Case Material

Gold-Plated

Case Width

41mm

Case Thickness

10.9mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

90m

Dial Color

Blue Sunburst

Jewels

22j

Frequency

28,800 bph

Power Reserve

59 hours

Year

1977

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