Seiko Cal. 5222 - 831

Released in 1968, the Cal. 5222 with design code 831 was part of Seiko's domestic market collection. Powered by the 5222 caliber with 21j jewels beating at 28,800 bph, it delivers a 70 hours power reserve. [seikata-wm-dc8608b09b0d]

Also known as: Helmet, Arnie

Specifications

Movement

Automatic

Case Material

Two-Tone

Case Width

38mm

Case Thickness

9.9mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

140m

Dial Color

White

Jewels

21j

Frequency

28,800 bph

Power Reserve

70 hours

Year

1968

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