Seiko Cal. 4431 - 576

The Seiko 4431-576 represents an important milestone in Seiko's 1971 lineup. The Inner Rotating bezel and 37mm case give it a distinctive presence on the wrist. [seikata-wm-c406ff77ee98]

Also known as: Turtle, Rally

Specifications

Movement

Quartz

Case Material

Two-Tone

Case Width

37mm

Case Thickness

10.4mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

30m

Dial Color

Blue Sunburst

Jewels

33j

Frequency

21,600 bph

Power Reserve

50 hours

Year

1971

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