Just an update if anyone is interested. Ordered my yellow gold guilloche on 10/15/23, i received it Friday, so 3/15/24, exactly 5 months.I have the white gold that i bought in store. I ordered the yellow gold on October 19 with 100% deposit. They told me 12-18 months... lol
I have to weigh them but my white gold guilloche feels heavier and 'sounds' different. The yellow sounds hollow and the white doesn't.