Seiko Cal. 4428 - 342

Seiko 4428-342

The Seiko 4428-342 represents an important milestone in Seiko's 1973 lineup. The Rotating bezel and 36mm case give it a distinctive presence on the wrist. [seikata-wm-208cf3bd172a]

Also known as: Sportsmatic

Specifications

Movement
Hand-Winding
Case Material
Gold-Plated
Case Width
36mm
Case Thickness
12.7mm
Lug Width
18mm
Crystal
Acrylic
Bezel
Rotating
Water Resistance
140m
Dial Color
Black
Jewels
23j
Frequency
21,600 bph
Power Reserve
69 hours
Year
1973

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seikata-wm-208cf3bd172a