Gareth, I just weighed my 6802T (from the last GB) and it comes to 10.5 US pounds. I'll let you do the conversion to kg, or whatever crazy system you use in the rest of the world
KEEP THIS IN MIND, THOUGH: It's a different mic, of course. What I weighed was the whole flight case, which contains a power supply, cables, microphone and the shock. PLUS--Chance used Fedex last time (if I remember correctly) and got some sort of discount....so, take this weight that I just posted with a grain of salt. Or even a fistful.
The 1200 could weigh substantially more or less. The power supply might be a different design, weighing more or less. The cables included might even be different enough to make a difference, same with the shock mount. I can't remember if a case is included with the 1200...but if so, that could weigh differently, too. The numbers I post are just for fun, to give your mind something to work with. Can't rely on them, though...