In the comedy film That's My Boy, the character Chad Martin (played by Milo Ventimiglia) wears a Casio G-Shock DW9052-1V watch.

This shock resistant, 200m water resistant watch features EL backlight with afterglow,
daily alarm, countdown timer, stopwatch, hourly time signal, calendar and measures 48.5 x 43.0 x 14.7mm, and weighs 59g.

The G-Shock can be spotted in many films (see more Casio sightings), especially on the wrists of military/police/law enforcement personnel.

Get this Casio G-Shock DW9052-1V for around $50 on Amazon.com or eBay.