Seiko Cal. 4422 - 812

The Seiko 4422-812 represents an important milestone in Seiko's 1973 lineup. The Coin-Edge bezel and 38mm case give it a distinctive presence on the wrist. [seikata-wm-dd2092b6443c]

Also known as: Sumo

Specifications

Movement

Hand-Winding

Case Material

Gold-Plated

Case Width

38mm

Case Thickness

10.8mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

120m

Dial Color

Cream

Jewels

33j

Frequency

28,800 bph

Power Reserve

67 hours

Year

1973

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