I recently decided to purchase a GWA1100 Aviator. Upon receiving the watch I discovered that the minute and second hands were slightly mis-aligned from the markers. They would land slightly ahead of each marker. I decided to return the watch. My next step was to purchase a MTGS1000D. From reading this forum I found out that the MTG is made in Casio's prestigious factory in Japan, so I wanted to see if the quality control would be better. Even before it was delivered I started to feel guilty about spending that much money, so I ordered another GWA1100 hoping that it would be better than the first. I figured, if it was better, I would just return the MTGS1000D. Of course, when the MTG arrived, I discovered that the alignment was very, very good, but I still held out hope for the GWA1100. Well, the GWA1100 arrived today and, just like the first one, the hands were misaligned. This time, the second hand was pretty good, but the minute hand was always past the marker at the top of each minute. I immediately packaged it up and returned it to the seller. Looks like I will keep the MTGs1000D. I would have hoped that the GWA1100 (at approximately $400) would have been a more precise instrument, but at least the more expensive MTGS1000D is very good. I guess one has to spend more than $400 to get the kind of precision I am looking for.