Seiko Cal. 7180 - 633

The Seiko 7180-633 represents an important milestone in Seiko's 1983 lineup. With its 20mm lug width and 11.2mm profile, it sits comfortably on most wrists. [seikata-wm-82877a19bc7c]

Also known as: Samurai, Silverwave

Specifications

Movement

Kinetic

Case Material

PVD Black

Case Width

41mm

Case Thickness

11.2mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

140m

Dial Color

Green

Jewels

32j

Frequency

21,600 bph

Power Reserve

44 hours

Year

1983

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