Hi Bruce,
Well spotted!
So others can understand what you’re talking about . . .
Swarovski uses various forms of standard scannable numbering for stock management purposes.
On the box labels, there is both an EAN (European Article Number) and a UPC (Universal Product Code).
See a break down of the components in post #15 at:
Which model is more advanced?
The [model number] comprises a portion of the UPC:
View attachment 1505679
. . . So the change occurred sometime in 2021
(for an explanation of the components in the current serial numbering, see the latest post in the link below).
- - - -
The [model number] didn't change with the introduction of the Legend version of the x42 EL SV’s in 2020.
For the 10x42 labels see post #7 at:
Swarovski serialnumbers changed
So as to what the new [number] indicates 🤷♂️
. . .