https://www.theregister.co.uk/2019/09/02/apple_free_repair_service_for_defective_watches/

Good news for owners of certain Apple Watches – the vendor has initiated a free-of-charge repair service for those afflicted with a design defect that can cause the screen to crack.

"Apple has determined that, under very rare circumstances, a crack may form along the rounded edge of the screen in aluminium models of an Apple Watch Series 2 or Series 3. The crack may begin on one side and then may continue around the screen," the alert on its website confirms.