Seiko Cal. 4447 - 784

Seiko 4447-784

This Hand-Winding model from 1981 features a 45mm PVD Black case. Powered by the 4447 caliber with 30j jewels beating at 21,600 bph, it delivers a 42 hours power reserve. [seikata-wm-2d0363542e9d]

Specifications

Movement
Hand-Winding
Case Material
PVD Black
Case Width
45mm
Case Thickness
14.6mm
Lug Width
22mm
Crystal
Acrylic
Bezel
Coin-Edge
Water Resistance
110m
Dial Color
White
Jewels
30j
Frequency
21,600 bph
Power Reserve
42 hours
Year
1981

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seikata-wm-2d0363542e9d