This rare Jaeger-LeCoultre chronograph, reference 124103, is a vintage example from the 1950s. Featuring an oversize 37.5 mm 18K rose gold case for its era, it houses a manual-winding Caliber 285 movement, based on a Universal Genève caliber. The white dial, though showing signs of wear, retains its original charm, reprinted dial. A collector's piece representing a historical period in watchmaking.