Girard-Perregaux Free Bridge Meteorite

The Girard-Perregaux Free Bridge Meteorite, reference 82000-11-3259-5CX, has a steel case measuring 44 mm in diameter and 12.2 mm thick. Self-winding calibre GP01800 contains 23 jewels and has a power reserve of 54 hours. The movement runs at 28,800 vibrations per hour (4 Hz), with a variable-inertia balance and silicon in the escapement and parts of the balance wheel. Sapphire front glass and an anti-reflective sapphire display back reveal the construction. A calf leather strap with a fabric effect has a steel triple folding clasp, and the case is rated to 30 metres. Two plates of Gibeon meteorite show the naturally occurring Widmanstätten pattern in their iron-nickel alloy.