Seiko Cal. 5218 - 731

The Seiko 5218-731 represents an important milestone in Seiko's 1974 lineup. The Bidirectional bezel and 42mm case give it a distinctive presence on the wrist. [seikata-wm-8468cc14a351]

Also known as: UFO

Specifications

Movement

Automatic

Case Material

Gold-Plated

Case Width

42mm

Case Thickness

11.9mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

50m

Dial Color

Black

Jewels

27j

Frequency

21,600 bph

Power Reserve

37 hours

Year

1974

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