Seiko Cal. 5231 - 315

The Seiko 5231-315 represents an important milestone in Seiko's 1987 lineup. The Fixed bezel and 44mm case give it a distinctive presence on the wrist. [seikata-wm-4c68c917fec4]

Also known as: UFO

Specifications

Movement

Hand-Winding

Case Material

Two-Tone

Case Width

44mm

Case Thickness

10.2mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

110m

Dial Color

White

Jewels

26j

Frequency

28,800 bph

Power Reserve

45 hours

Year

1987

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