Is a rep so easily identifiable? Most definitely i know not to bring a rep to AD! But will small kiosks or even non-luxurious watch shops will be able to tell it's a rep just by looking and holding/adjusting links?
Depends on a lot of factors.
Also depends on what rep you're talking about.
If you have a super rep (eg PAMs, Tudor ranger etc) then I highly doubt small jewellery shops will be able to tell just by holding it in the hands and taking a quick look whilst removing links.
Ceramic rolexes are NOT super-rep and the jewellery shop personnel may or may not be able to identify it as a rep. The crystal clarity and bezel shine will probably alert them to something being not quite right. However, despite this, a lot of them wouldn't give a rats ass if it's fake or not and will probably just crack on with changing the bracelet....some are a bit sceptical of handling reps (in case they break something and the owner gets upset).
Some kiosk works don't know their ass from their elbow and wouldn't even know/care.