Ulysse Nardin

Does the movement number seen through the displayback have just a 5 digit 26xxx, or does it have a UN26 in front of it? I just bought one and I'm a little concerned. Mine has only 26xxx with no other number like the the UN cal.#. I have seen only a couple... 

since the movement numbers come in some variations, without having any influence on either performance and value. The only important thing is that it has to have a visible number, for the chronometer test, and that the movement number printed on the COSC ... 

that a LE (not that 1000 pcs. is that limited) would have the movements engraved in a different format, like mine with five numbers 26xxx and others having eight, un26-26xxx for ex. Thats what had me a little concerned. Thanks again Marcus!

It's a 5 digit number.