Seiko Cal. 7180 - 641

The Seiko 7180-641 represents an important milestone in Seiko's 1990 lineup. With its 22mm lug width and 15.7mm profile, it sits comfortably on most wrists. [seikata-wm-a01d2f937d0f]

Also known as: Sumo

Specifications

Movement

Hand-Winding

Case Material

Two-Tone

Case Width

37mm

Case Thickness

15.7mm

Lug Width

22mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

30m

Dial Color

Champagne

Jewels

17j

Frequency

36,000 bph

Power Reserve

36 hours

Year

1990

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