Seiko Cal. 5231 - 486

The Seiko 5231-486 represents an important milestone in Seiko's 1977 lineup. The Fixed bezel and 43mm case give it a distinctive presence on the wrist. [seikata-wm-9b453daa562c]

Also known as: UFO, Emperor

Specifications

Movement

Hand-Winding

Case Material

PVD Black

Case Width

43mm

Case Thickness

11.1mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

60m

Dial Color

Navy

Jewels

36j

Frequency

28,800 bph

Power Reserve

59 hours

Year

1977

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