Seiko Cal. 4531 - 713

The Seiko 4531-713 represents an important milestone in Seiko's 1976 lineup. The Rotating bezel and 37mm case give it a distinctive presence on the wrist. [seikata-wm-9aa6731aff9a]

Also known as: Turtle, UFO

Specifications

Movement

Kinetic

Case Material

Hardlex-Coated Steel

Case Width

37mm

Case Thickness

12.2mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

200m

Dial Color

Navy

Jewels

32j

Frequency

28,800 bph

Power Reserve

69 hours

Year

1976

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