watch will not turn on
watch will not turn on even pressing the two buttons at the same time
Apple Watch Series 1, watchOS 6
Question marked as
Follow these steps:
If your Apple Watch won't charge or it won't turn on - Apple Support
If you still need help, contact Apple Support.
Or perhaps make an appointment at the Genius Bar in an Apple Store near you and let them look at it:
Genius Bar Reservation and Apple Support Options - Apple