Seiko Cal. 5221 - 347

The Seiko 5221-347 represents an important milestone in Seiko's 1981 lineup. The Fixed bezel and 45mm case give it a distinctive presence on the wrist. [seikata-wm-5ded1f8b83e3]

Also known as: Helmet

Specifications

Movement

Automatic

Case Material

PVD Black

Case Width

45mm

Case Thickness

9.4mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

160m

Dial Color

Silver

Jewels

32j

Frequency

21,600 bph

Power Reserve

40 hours

Year

1981

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