Seiko Cal. 4428 - 342

Seiko 4428-342

The Seiko 4428-342 represents an important milestone in Seiko's 1967 lineup. The Fixed bezel and 41mm case give it a distinctive presence on the wrist. [seikata-wm-fdb261fc3cfd]

Also known as: Silverwave, Sportsmatic

Specifications

Movement
Automatic
Case Material
Stainless Steel
Case Width
41mm
Case Thickness
13.6mm
Lug Width
21mm
Crystal
Acrylic
Bezel
Fixed
Water Resistance
70m
Dial Color
White
Jewels
28j
Frequency
21,600 bph
Power Reserve
39 hours
Year
1967

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