Apple launches worldwide free repair program for Apple Watch Series 6 smartwatches (review).
As noted in document In the support section on the Apple website, a small percentage of the Apple Watch Series 6 in the 40mm version has a so-called blank screen problem – the watch display can constantly go blank.
The affected devices were manufactured between April 2021 and September 2021. Users of these watches are required to check the serial number on Apple’s website to see if the device is eligible for the program. If the verification is successful, then Apple or an authorized service center will repair the watch free of charge.