Used S6. Works great. Some scratches on face. Main band is broken, but comes with additional longer band for wearing over jacket. All parts/instructions/software included. Brand new battery. $50

The Suunto S6 snow sports watch is a wrist-top computer that helps you make the most of your recreational ski workout. It measures downhill speeds, monitors the weather, and provides multiple alarms. The winter extension strap allows you to wear the watch over gloves.

Features include:

Suunto S6 snow sport training watch
Datasnake interface cable
Suunto ski manager 1.2 software CD
Extension strap
Black case and bracelet
Digital display
Time
Compass
Ski chronometer
Date
Multiple alarms
Thermometer
Altimeter/barometer
Downhill speed
Clinometer
PC interface
100-meter (330-ft.) water resistance rating
Tang buckle

Technical requirements:

Suunto ski manager 1.2 software CD (included)
IBM compatible PC
266 MHz processor
32 MB memory
Windows 98/Me/2000/XP

Picture from website: