Seiko Cal. 7131 - 346

The Seiko 7131-346 represents an important milestone in Seiko's 1998 lineup. With its 21mm lug width and 13.8mm profile, it sits comfortably on most wrists. [seikata-wm-1475ccbab24e]

Also known as: Shogun, Helmet

Specifications

Movement

Hand-Winding

Case Material

Two-Tone

Case Width

38mm

Case Thickness

13.8mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

100m

Dial Color

Black

Jewels

29j

Frequency

36,000 bph

Power Reserve

53 hours

Year

1998

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