Seiko Cal. 4447 - 990

Seiko 4447-990

This Spring Drive model from 1990 features a 39mm PVD Black case. With its 19mm lug width and 10.6mm profile, it sits comfortably on most wrists. [seikata-wm-446c34a5da9e]

Also known as: Sumo, Shogun

Specifications

Movement
Spring Drive
Case Material
PVD Black
Case Width
39mm
Case Thickness
10.6mm
Lug Width
19mm
Crystal
Mineral
Bezel
Coin-Edge
Water Resistance
100m
Dial Color
Black
Jewels
22j
Frequency
28,800 bph
Power Reserve
64 hours
Year
1990

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seikata-wm-446c34a5da9e