Celestial dial with black sapphire-crystal disks for sky background and moon phases and transparent sapphire-crystal disk for sky chart and Milky Way
caliber 324 S QA LU self-winding movement with annual calendar
stainless steel Oyster bracelet with flat three-piece links
bezel set with 36 diamonds
Caliber: CRMA5
Cartier Tortue Perpetual Calendar Watch - 45.6 mm White Gold Case - Black Alligator Strap - W1580048 Tortue Celestial dial with black sapphire-crystal45. 6mm x 51mm 18K white gold case, 16mm thick, sapphire back, octagonal crown set with a sapphire, sapphire crystal, slate dial with openwork satin brushed silvered grid, sunray finish, black transferred Roman numerals, snailed counter, apple shaped blued steel hours and minutes hands, caliber 9422 MC automatic movement , perpetual calendar with days displayed by a retrograde hand, and months and leap years in a counter at 12 o'clock, approximately