Seiko Cal. 4431 - 651

The Seiko 4431-651 represents an important milestone in Seiko's 1985 lineup. The Inner Rotating bezel and 45mm case give it a distinctive presence on the wrist. [seikata-wm-fd31b45a5a15]

Also known as: Silverwave, Goldfeather

Specifications

Movement

Automatic

Case Material

Gold-Plated

Case Width

45mm

Case Thickness

9.9mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

200m

Dial Color

Green

Jewels

18j

Frequency

28,800 bph

Power Reserve

60 hours

Year

1985

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