Seiko Cal. 7121 - 520

The Seiko 7121-520 represents an important milestone in Seiko's 1983 lineup. With its 18mm lug width and 15.6mm profile, it sits comfortably on most wrists. [seikata-wm-9c5df1b4691c]

Also known as: Bullhead, Rally

Specifications

Movement

Hand-Winding

Case Material

Two-Tone

Case Width

38mm

Case Thickness

15.6mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

50m

Dial Color

Burgundy

Jewels

34j

Frequency

28,800 bph

Power Reserve

41 hours

Year

1983

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