yep, MBK is headaches these days, poor QC on movements, modded movements, and seagul movements being sold as genuine ETA in their models, its not worth it to sell running watches since you cant guarantee theyre mechanically sound, this i've come to learn. only buy parts or put in your own movement is what i would recommend. the problem with their 5513 is that they modify the movement and remove a few parts that they dont see as necessary to its function, but they dont understand how it interacts and jams up the keyless works, every 5513 i've gotten recently has had this problem without exception. i've learned by observation and corrected dozens now and they all perform as they should, resetting the keyless works just does literally that, its not a fix. most recently i've just been swapping in some 2846s since i just buy cases, seeing as how most people dont use the dial and there are better bracelets or even go nato.