I've looked around online n it seems there's a general consensus that Renata (swiss made) batteries do leak! Not always but they do leak! And i'm not talking about when the batt is flat n left in the watch for a long time. It can leak while the watch is still ticking.
Then i see some batteries like Maxell that says it'll be responsible for the damage if their batt leak in a watch. Does that mean they are confident that Maxell batt don't leak? I've also seen some dry cells that says their batt is guaranteed not to leak.
In other words,it seems like Renata isn't the best option. So why do ADs or service centres use Renata for swiss made watches? Is it 'cos Renata is truly better or they just think a swiss made watch needs a swiss made batt?
Are there any of us who use Sony/Energizer/Maxell on a swiss made watch without any issue? I'm just wondering if Renata is not the best choice after all.