Cartier Roadster GMT modelLarge model, steel, date function at 3 o’clock, silver flinqu?dial, black stretched Roman numerals, concentric ellipse decoration, luminescent railtrack minute circle, blued steel hands with luminescent coating. Watch comes with interchangeable bracelet and strap: one in steel and the other in black calfskin with an interchangeable steel adjustable deployant buckle, mechanical movement with automatic winding - Cartier caliber 3110, water-resistant to 330 feet (100 meters).