Seiko Cal. 7151 - 723

The Seiko 7151-723 represents an important milestone in Seiko's 1990 lineup. With its 20mm lug width and 15.4mm profile, it sits comfortably on most wrists. [seikata-wm-12245f2e229e]

Also known as: Sumo, Helmet

Specifications

Movement

Automatic

Case Material

Gold-Plated

Case Width

34mm

Case Thickness

15.4mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

110m

Dial Color

Navy

Jewels

20j

Frequency

28,800 bph

Power Reserve

57 hours

Year

1990

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