Purpose: Silence your digital watch beeps and alarms. Following this modification, your digital watch will be permanently silent.
Method: Remove spring-diaphragm amplification
Target audience: This is especially useful for standardized test takers (MCAT, SAT, LSAT, GRE, etc.) and others who need the element of surprise in whatever they are timing.
Step 1: Get a cheap watch somehow
I paid the kind folks at the Walmart jewelery counter a visit. I traded my $9 for this fine Casio watch.
Perhaps you can find a digital watch around the house.