Rare Tantalum Watch---Panerai PAM172 Tantalum

The main use for tantalum because of the metal powder, is incorporated in the manufacture of electronic components, mainly capacitors and a few high-end audio grade resistors. Tantalum electrolytic capacitors exploit the inclination of tantalum to create a protective oxide surface layer, using tantalum foil as you plate of the capacitor, the oxide because the dielectric, as well as an electrolytic solution because the other plate. 

Since the dielectric layer can be quite thin (thinner compared to similar layer in, for example, an aluminium electrolytic capacitor), it is a higher capacitance could be accomplished inside a small volume. Because of the weight and size advantages, tantalum capacitors are attractive for portable telephones, pagers, pcs, and automotive electronics.

Tantalum can also be used to make a number of alloys which have high melting points, are strong and also have good ductility. Alloyed along with other metals, it's also utilized in making carbide tools for metalworking equipment as well as in producing super alloys for jet engine components, chemical process equipment, nuclear reactors, and missile parts. Due to its ductility, Ta could be attracted into fine wires or filaments, which can be used for evaporating metals for example aluminium.

Since it resists attack by body fluids and it is nonirritating, Ta is broadly utilized in making surgical home appliances. Tantalum oxide can be used to create special high echoing index glass for camera contacts. The metal can also be accustomed to make vacuum furnace parts.

Panerai PAM172 Tantalum, it is a very rare watch with only 300 produced back in 2003. The case is 44mm with brushed tantalum. The bezel and device protecting the crown are polished tantalum. The dial is black with luminous Arabic numerals and hour markers. Small seconds dial at 9 o'clock. The case back can be see-through sapphire crystal. The strap is leather with tantalum buckle personalized PANERAI. It is supplied with a steel screwdriver and a second interchangeable strap. 

The crystal is sapphire, formed of corundum, 3.5 mm thick. The watch is anti-reflective coating. The water resistant is to 300 meters. The movement is hand-wound mechanical, Panerai OP XI calibre with swan's neck regulator, 16? lignes, 17 jewels, PANERAI bridges. Glucydur? balance with Nivarox I spring, 21,600 alternations/hour. It is incabloc anti-shock device with power reserve in 56 hours. The watch had been approved by Chronometer Certificate (C.O.S.C.). It is a really nice limited edition watch.