Seiko Cal. 7131 - 723

The Seiko 7131-723 represents an important milestone in Seiko's 1966 lineup. The Coin-Edge bezel and 43mm case give it a distinctive presence on the wrist. [seikata-wm-2087626d68df]

Also known as: Sportsmatic, Arnie

Specifications

Movement

Kinetic

Case Material

Hardlex-Coated Steel

Case Width

43mm

Case Thickness

9.6mm

Lug Width

22mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

100m

Dial Color

Burgundy

Jewels

29j

Frequency

36,000 bph

Power Reserve

54 hours

Year

1966

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