It will fit but it's not the right strap for that watch.
Quick question. I've got a Rubber B strap (with tang buckle) that I used to wear on a Rolex 16610 Sub. I don't own the sub any more, but a mate of mine has a GMT II BLNR (i.e. the newer ceramic GMT 116710) and is interested in trying a rubber strap on it. Would my Rubber B fit, given that I believe both watches have 20mm lug width?
Thanks
Dave
It will fit but it's not the right strap for that watch.