Seiko Cal. 7031 - 285

The Seiko 7031-285 represents an important milestone in Seiko's 1976 lineup. Powered by the 7031 caliber with 31j jewels beating at 28,800 bph, it delivers a 62 hours power reserve. [seikata-wm-a3e5bf0be571]

Also known as: UFO, Sportsmatic

Specifications

Movement

Kinetic

Case Material

Stainless Steel

Case Width

37mm

Case Thickness

14.4mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

160m

Dial Color

Champagne

Jewels

31j

Frequency

28,800 bph

Power Reserve

62 hours

Year

1976

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