Average Reviews:
(More customer reviews)I fell in love with this watch when I tried on the stainless steel version in a local retailer. The only problem I had with it is that it just seemed too heavy on my arm. Then I discovered the titanium version that is much lighter than the stainless steel version, but sticker shock initially put me off. However, this watch is so handsome and useful to me that I finally broke down and ordered the pricey titanium version, and I confess that I could not be more pleased with it. Some may find the gleam of the stainless steel version initially more attractive, but the subdued titanium finish has an understated elegance to it that will have longer staying power than the flash of the stainless steel model, and the ounce difference in weight for me makes the difference between a burden on my arm and something I hardly even notice.
From the reviews, it appears that many users are confused by the clasp, claiming it doesn't allow enough clearance to get the watch on and off. This confused me also, and Suunto should come out with a new edition of the instruction manual that makes it clearer that the band has two clasps and when both of them are open, there is plenty of clearance getting the watch on and off.
Don't believe any reviewer that says the altimeter in this watch isn't accurate. If it isn't accurate, return it, because it means the watch is defective. A working Observer will be as accurate as the most expensive Thommen precision analog altimeter. I know, because I've owned the same, reliable Thommen (showing 20-foot intervals) for 29 years and have A-B'd the Observer with my Thommen on several hikes and have obtained as similar results as can be expected, given the intrinsic nature of altimeters based on the measurement of air pressure.
Although the manual can be criticized for its organization and sketchy documentation of its sometimes bewildering variety of features, it does give a fairly clear explanation of why altimeters in general can be as much as several hundred feet off over an elevation gain of several thousand feet, in spite of the fact that the sea level barometric pressure remains constant. Section 3.6 of the manual explains the effect of air temperature on altitude measurement. As the temperature rises, the air gets lighter, i.e. the barometric pressure falls. This is an intrinsic problem associated with any altimeter that works off of barometric pressure, including the world-renowned Thommen altimeters. Thus every altimeter must be calibrated to a set of certain "standard" temperatures. As long as the outside temperature tracks this standard and the sea level barometric pressure doesn't change, the altimeter will give an accurate reading. But the reading could be hundreds of feet off after a long hike in extreme temperatures.
The Observer instruction manual presents a table defining Suunto's standard. You can use this table to calculate the actual altitude, given the starting altitude, starting temperature, temperature at the destination, and the watch's altimeter reading. At first I found the calculation hard to understand, and Suunto's table presents lower and lower resolution as you increase in altitude, ostensibly (but not really) making the table less and less useful as the altitude increases. Eventually however, I "cracked the code" and wrote a program for the PC that calculates the correct offsets and even creates tables for all the variables. If interested, contact me via email for a free copy of the program.
Here are some examples. If you climb in temperatures that are much hotter than the temperature compensation standard built into the Observer, you will find that the readings from the watch will be several hundred feet lower than your actual altitude. For example, if the starting elevation is 100 feet and the starting temperature is 90 degrees F. and you climb until the Observer altitude reading is 4,000 feet and the temperature is still 90 degrees, your actual altitude will be 4,329 feet. On the other hand, if you climb in temperatures that are much colder than the temperature compensation standard built into the Observer, you will find that the readings from the watch will be several hundred feet higher than your actual altitude. For example, if the starting elevation is 100 feet and the starting temperature is 0 degrees F. and you climb until the Observer altitude reading is 4,000 feet and the temperature is still 0 degrees, your actual altitude will only be 3,685 feet. Finally, if you climb in temperatures close to the compensation standard built into the Observer, you will find that the watch display will be very close to the actual altitude. For example, if the starting elevation is 100 feet and the starting temperature is 58 degrees F and you climb until the Observer altitude reading is 4,000 feet and the temperature has fallen to 45 degrees, your actual altitude will be 3,998 feet. The reading is very close to the actual altitude because the temperatures at the start and end of the climb are very close to the built-in standard, which you can check out by looking at the table in sec. 3.6. (By the way, the manual has a math error in the example it gives for "Imperial" measurements. The difference between 47.3 degrees F and 36.3 degrees F is 11 degrees, not 9 as stated in the manual. Thus the actual altitude should be 9,724 feet, not 9,740 as stated in the manual.)
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