Seiko Cal. 7131 - 923

The Seiko 7131-923 represents an important milestone in Seiko's 1981 lineup. With its 19mm lug width and 15.2mm profile, it sits comfortably on most wrists. [seikata-wm-e0ca3b8803d7]

Also known as: UFO, Baby Tuna

Specifications

Movement

Kinetic

Case Material

Hardlex-Coated Steel

Case Width

38mm

Case Thickness

15.2mm

Lug Width

19mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

180m

Dial Color

Burgundy

Jewels

26j

Frequency

36,000 bph

Power Reserve

63 hours

Year

1981

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