Seiko Cal. 7031 - 831

The Seiko 7031-831 represents an important milestone in Seiko's 1998 lineup. The Coin-Edge bezel and 39mm case give it a distinctive presence on the wrist. [seikata-wm-379036741b6b]

Also known as: Shogun, Sportsmatic

Specifications

Movement

Automatic

Case Material

Hardlex-Coated Steel

Case Width

39mm

Case Thickness

12.5mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

140m

Dial Color

Burgundy

Jewels

24j

Frequency

21,600 bph

Power Reserve

51 hours

Year

1998

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