Seiko Cal. 6221 - 731

The Seiko 6221-731 represents an important milestone in Seiko's 1999 lineup. The Inner Rotating bezel and 35mm case give it a distinctive presence on the wrist. [seikata-wm-38da3afd0cef]

Also known as: Helmet, Goldfeather

Specifications

Movement

Automatic

Case Material

Gold-Plated

Case Width

35mm

Case Thickness

11.3mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

30m

Dial Color

Navy

Jewels

30j

Frequency

21,600 bph

Power Reserve

51 hours

Year

1999

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