MyStopwatch is an excellent Stop Watch and timer for our HD/Pro/Diamond. It supports WVGA, VGA, QVGA and WQAVGA. It’s aviable in English, Italian, Franch and Dutch. (if you want you can send a translation). .NET CF 2.0 Nedded.

Changes:

completely rewritten
support. net cf 3.5
less memory usage (before: 5mb, now: 1mb)
qvga, vga, wqvga, vga support
multilingual support
skin support
animation support
up to 6 timers simultaneously
2 split modes

http://forum.xda-developers.com/showthread.php?t=470244