firstly this is the second of two identical watches I have bought, the exact same issue happened with the first however i stupidly kept wearing it and lost the watch as the strap bin broke. I can also evidence this first purchase. The issue is the 'twisty adjuster piece on the side of the watch came out, whilst in water, supposedly 3 atm - I was in shallow water! not only was the pin lost in the water the watch filled and has gone a funny rusty colour - really not living up to its claim. Enis tufina is personally dealing with this case after our email communication.