I have admired the Casio altimeter/barometer/compass pathfinders for several years.  But I never cared for the huge size.

I wanted their functions in a smaller, lighter watch.  When Casio introduced the PAW1300T-7V, I decided I would try it as a replacement for my aging Luminox Navy Seal watch. I needed a watch that was fairly light and easily readable in the dark.  The Luminox had fit that bill perfectly with the Tritum capsules on the hands at at the hour marks.  But over time those capsules loose their luminosity.  Also batteries have to be replaced.  The prospect of a solar powered, rechargable watch that automatically corrected itself with the Atomic Clock signal was an added benefit.

I fly for an EMS helicopter service for a living.  Half of my shifts are night shifts.  This watch works very well for quick time checks with its auto-illumination feature.  I have found if I calibrate the altimeter and barometer with local conditions that the altimeter function is very accurate, usually within 20-40 feet of the calibrated altimeters in my helicopter.  I frequently check the watch against the altimeters when we are flying.  Dual time zones means I can leave the secondary time zone on UTC for filing filght plans.  The temperature function is not of any real value to me as it is greatly affected by body proximity.  But it is accurate if the watch is removed from the body for about 30 minutes.  The alarms work well but the alarm tones are too soft for my ears after flying turbine engined aircraft for almost 40 years.

So, a quick recap: Automatic self-correcting time snychronization, Solar powered/recharged, Excellent automatic self-illumiation, Accurate altimeter and compass functions when calibrated for local conditions.  It smaller than previous PAW's and lighter, especially in the Titanium version.  I was just thinking the other day that I have been using Casio watches for the last 30 years. (I just put a battery in one of the oldest and it still works great!) I have always liked their layout and user interface.  This newest Pathfinder of mine is no exception.  It is easy to use, easy to set.  If you like Casios, for the money, it is hard to beat this watch, especially on Amazon!