Seiko Cal. 5231 - 281

The Seiko 5231-281 represents an important milestone in Seiko's 1979 lineup. Powered by the 5231 caliber with 18j jewels beating at 21,600 bph, it delivers a 51 hours power reserve. [seikata-wm-8c351ef10eff]

Also known as: Goldfeather, Sportsmatic

Specifications

Movement

Kinetic

Case Material

Hardlex-Coated Steel

Case Width

45mm

Case Thickness

12.5mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

180m

Dial Color

Black

Jewels

18j

Frequency

21,600 bph

Power Reserve

51 hours

Year

1979

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