Seiko Cal. 4428 - 922

The Seiko 4428-922 represents an important milestone in Seiko's 1982 lineup. The Bidirectional bezel and 41mm case give it a distinctive presence on the wrist. [seikata-wm-38eae1454c7a]

Also known as: Sportsmatic

Specifications

Movement

Spring Drive

Case Material

Gold-Plated

Case Width

41mm

Case Thickness

11.0mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

130m

Dial Color

Blue Sunburst

Jewels

28j

Frequency

28,800 bph

Power Reserve

46 hours

Year

1982

Related Models

• Seiko 6165-888
• Seiko 6147-991
• Seiko 7050-823
• Seiko 7129-865
• Seiko 5277-469
• Seiko 6293-964
• Seiko 0714-784
• Seiko 7077-416
• Seiko 7051-113
• Seiko 5210-740
• Seiko 6235-102
• Seiko 0780-201