If you have some difficulties getting focussed on your work during the day, the pomodoro technnique might be something that works for you.
In a set of intervals, usually 25 minutes, seperated by short breaks of about 3 minutes, you break down your work. Focus yourself on writing that important paper, and get that cup of tea in your little break.
Pomodoreau is a small Apple Watch app which supports the new Always-On functionality in watchOS 8 or higher (on supported devices). You can set your own session and break length in the app and you can also set if Pomodoreau counts up or down.