A bit of fun for a dull and wet Monday!!!!

Ok, so this is a bit of strange and wonderful question. But if I've learnt anything on here, I'm not alone at being a watch collector and having a love for many watches. I also know many of us wear an array of watches over the period of a week. So what if you were force to choose only one watch to survive a zombie apocalypse with, what would it be?
For me it would have to be my Rolex GMT Master II 116710LN. It is completely reliable (like most Rolexes). Readable at only a glance. Strong and robust. Automatic, so no chance of the battery running out. Water proof (I wouldn't expect more then 100m to be needed). And it has a date function. Last of all I trust it completely. It has never let me down.