Depends on how strict the proctors are. One guy had a watch that made a soft chirp on the hour. It went off four times during the morning session and the proctors let it go. My guess is that everyone within 30' could hear it.I got the W201 but I couldn’t find a mute feature. There’ll be a little beep when I start the stopwatch. Do any experienced test takers see that being an issue? I can cough when I hit it lol
Before the start of the afternoon session they approached him and asked him to turn off the sound. It was a cheap drug-store watch and he very quickly offered to throw away the watch. He was clearly stressed out. Instead the proctors had him store it with the other watches and electronics that were accidentally brought into the room and surrendered during the grace period. Those items were stored at the front of the room to be reclaimed after the test. The proctors were much more lenient that they should/could have been per the rules. Do you want to risk it?
It may also be possible to mechanically permanently disable the chirp... with a safety pin.