I purchased a new Topas (920.73.00.4) online. Everything looks fine, except that the serial number engraved in the frame is different from the numbers on the barcode label sticker in the guarantee booklet. Also own a Salsa, which was bought from a retail store, the serial number on that one is the same as the barcode label sticker.

I’m a bit concern, should the serial number for the Topas be the same as in the guarantee booklet?

Thx!!