Seiko Cal. 7018 - 921

Released in 1980, the Cal. 7018 with design code 921 was part of Seiko's domestic market collection. With its 18mm lug width and 8.2mm profile, it sits comfortably on most wrists. [seikata-wm-7a3a196aa3ac]

Also known as: Tuna, Helmet

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

44mm

Case Thickness

8.2mm

Lug Width

18mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

80m

Dial Color

Green

Jewels

36j

Frequency

36,000 bph

Power Reserve

55 hours

Year

1980

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