I've owned 4 different Lum-Tecs (B3, B13, M24 and Super Combat B2), and up to three at one time. They were all really nice watches, but the only one I still own the the Combat B3. Love this watch. I only wish it had a higher end movement that hacked, and was able to hand wind. Accuracy is very good however, and Lum-Tec offers free lifetime timing adjustments. Their customer service is also first class! I will own another Super Combat B2 some day as well. I really miss the one I had. Awesome watch!