Seiko Cal. 4431 - 997

The Seiko 4431-997 represents an important milestone in Seiko's 1976 lineup. The Rotating bezel and 40mm case give it a distinctive presence on the wrist. [seikata-wm-aec4eff86e0f]

Also known as: Arnie

Specifications

Movement

Spring Drive

Case Material

Gold-Plated

Case Width

40mm

Case Thickness

9.2mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

60m

Dial Color

Burgundy

Jewels

32j

Frequency

36,000 bph

Power Reserve

65 hours

Year

1976

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