A few laps in the pool today proved otherwise. I was about to time myself ans as I was looking at the watch, all I could see was a pool of water in the display. I was like WADAFAK! It was fine when I took it for swimming before the battery change. Took it off and start to examine the backplate, 3 out of 4 screws are MISSING!!!!! How could it happened? Didn't they checked all the fixing screw should have been in place before returning it to your paying customer after a battery change or else the watch wouldn't be waterproof anymore?
A trip back to shop was called for. The salesgirl recognised me and with the look on my face she knew that it wasn't good news. She explained that her completely incompetent and moron of a colleague didn't screw all the fixing screws yesterday, She only knew about if after he asked what to do with the extra screws? She said she tried to find me after I left the shop but couldn't find me. Call yourself and establishment that deals with fine timepieces and you find extra screws during a basic routine battery change?
I wouldn't know whether they could repair the watch or not as from what I could see it had extra electronics part for the HRM. If they couldn't than I would like to request a new one, equivalent or better replacement. Till then I have to wait till they have a look at it more closely.