Seiko Cal. 4428 - 915

Seiko 4428-915

The 4428-915 is a sought-after Hand-Winding piece from Seiko's golden era. With its 20mm lug width and 9.7mm profile, it sits comfortably on most wrists. [seikata-wm-f109a8483a95]

Specifications

Movement
Hand-Winding
Case Material
Titanium
Case Width
46mm
Case Thickness
9.7mm
Lug Width
20mm
Crystal
Mineral
Bezel
Inner Rotating
Water Resistance
50m
Dial Color
Navy
Jewels
28j
Frequency
28,800 bph
Power Reserve
55 hours
Year
1975

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seikata-wm-f109a8483a95