https://github.com/swfans/swars-re-helpers can dump Watcom symbols from the binary
wdump -Dx [file1].sym > [file2].txt
Example: wdump -Dx Rising.sym > symbols.txt
Symbols can be demangled with a Watcom demangler such as https://github.com/open-watcom/open-watcom-v2/blob/master/bld/lib_misc/c/demangle.c