Seiko Cal. 0728 - 447

Seiko 0728-447

The 0728-447 is a sought-after Spring Drive piece from Seiko's golden era. With its 20mm lug width and 10.3mm profile, it sits comfortably on most wrists. [seikata-wm-992be24f364b]

Specifications

Movement
Spring Drive
Case Material
Titanium
Case Width
41mm
Case Thickness
10.3mm
Lug Width
20mm
Crystal
Hardlex
Bezel
Fixed
Water Resistance
180m
Dial Color
Navy
Jewels
32j
Frequency
21,600 bph
Power Reserve
37 hours
Year
1973

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