Panerhai Tantalum Watch

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Made in 2003, model: pam172, limited to 300 pieces, serial number: 047/300. Tantalum case with transparent case back. OP XI movement with manual winding, 17 rubies. Blue steel fluorescent pointer and fluorescent scale. Case dimensions: 44mm x 44mm, thickness: 15mm. Tantalum metal buckle. Accessories: watch box and certificate.
  Comment: The use of new materials for the case is also a landmark in the history of watchmaking. Because tantalum has physical characteristics such as high density, strong ductility, high melting point, and corrosion resistance, the process of making a case with tantalum metal is very complicated and difficult, especially the later grinding and polishing, so it is very rare. Tantalum is particularly stable and does not cause human allergies.