Seiko Cal. 6178 - 609

The Seiko 6178-609 represents an important milestone in Seiko's 1981 lineup. The Rotating bezel and 44mm case give it a distinctive presence on the wrist. [seikata-wm-f9874f6d72ec]

Also known as: Tuna

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

44mm

Case Thickness

10.3mm

Lug Width

19mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

150m

Dial Color

Blue Sunburst

Jewels

27j

Frequency

21,600 bph

Power Reserve

65 hours

Year

1981

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