Seiko Cal. 7018 - 255

The Seiko 7018-255 represents an important milestone in Seiko's 1975 lineup. The Bidirectional bezel and 41mm case give it a distinctive presence on the wrist. [seikata-wm-cc97061a04b8]

Also known as: Helmet, Golden Tuna

Specifications

Movement

Automatic

Case Material

Two-Tone

Case Width

41mm

Case Thickness

12.5mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

170m

Dial Color

Blue Sunburst

Jewels

23j

Frequency

21,600 bph

Power Reserve

41 hours

Year

1975

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