Seiko Cal. 7170 - 980

The Seiko 7170-980 represents an important milestone in Seiko's 1981 lineup. With its 22mm lug width and 12.5mm profile, it sits comfortably on most wrists. [seikata-wm-6f37af24ae8f]

Also known as: Sumo

Specifications

Movement

Hand-Winding

Case Material

Stainless Steel

Case Width

45mm

Case Thickness

12.5mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

180m

Dial Color

Black

Jewels

29j

Frequency

28,800 bph

Power Reserve

56 hours

Year

1981

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