Seiko Cal. 4439 - 647

Seiko 4439-647

This Hand-Winding model from 1977 features a 45mm Stainless Steel case. With its 20mm lug width and 15.5mm profile, it sits comfortably on most wrists. [seikata-wm-3cca13e4d38a]

Specifications

Movement
Hand-Winding
Case Material
Stainless Steel
Case Width
45mm
Case Thickness
15.5mm
Lug Width
20mm
Crystal
Acrylic
Bezel
Bidirectional
Water Resistance
180m
Dial Color
White
Jewels
20j
Frequency
28,800 bph
Power Reserve
40 hours
Year
1977

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seikata-wm-3cca13e4d38a