On the first Saturday in January, at 10:20 a.m., I went back to the jeweller's in Xujiahui.
It is on the third floor, between an optician's and a tea counter. Silver bangles on velvet, a tilted mirror, and right at the back a display case lower than the others, lit in yellow.
I put the bracelet down on the counter and asked for the same one, bigger.
The saleswoman rolled it between two fingers to find the hallmark on the inside. She said this model didn't come in a bigger size. She said it kindly, the way you correct someone who comes from somewhere else.