I tried to copypaste something from Cartier but it looked like i spammed the topic hahha.
But i compared 42 gold with 36 steel and i guess the SA was right .... the steel sapphire is syntetic
Steel case, fluted crown in steel set with a blue synthetic spinel cabochon, sapphire crystal, silvered opaline and ''guilloché'' dial
Case in 18K yellow gold, 18K yellow gold fluted crown set with a blue sapphire cabochon, sapphire crystal, silvered opaline dial
