Piaget caliber 438P
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438P description
Manufacture Piaget 438P ultra-thin hand-wound mechanical movement.
Type: Hand-wound mechanical
Shape: Rectangular
Functions: Minutes, Hours
Technical features: Balance stop
Power reserve (in hours): Approx. 43
Frequency (vph): 21,600
Frequency (Hz): 3
Diameter (lines): 10.75 X 9
Diameter (mm): 20.3 x 23.7
Number of jewels: 19
Thickness (mm): 2.1
Number of components: 136
Finishing: Circular-grained mainplate, Bevelled bridges, Circular Côtes de Genève, Blued screws