I bought 4 of these for groomsman's gifts for my wedding. Three out of four will barely take it off. The other will only wear it sparingly because he is afraid to scratch it. The age ranges are from 16 to 33. Maybe this helps if you are considering this as a gift. One thing to consider for bigger guys, go ahead and buy a longer strap the same time you buy the watch. I bought my 4 from a brick and mortar jewelry store so I can't speak about Amazon's service in this instance. One thing to note about eco-drives, if you leave them in the dark for extended periods of time (say in a safe deposit box whilst on a year long deployment) it may take up to a week for the capacitor to charge sufficiently.