Pros: Looks, Feel, Class, Luxury
Cons: Break in period / None!
I bought this watch roughly 2 years ago. I absolutely love the way this watch feels and looks. The watch is solid and you are not in doubt when wearing it, but it is not heavy or uncomfortable at all. The watch reeks class and I have had more than one stranger stopping me at bars, clubs, restaurants and work asking to see the watch.
Initially, the watch was gaining about 1 min 30 secs a week, which needless to say is excessive. I had the dealer sent it in for adjustment and once returned it worked.
One thing to keep in mind is that is is a mechanical watch. The beautiful part about that is that the motion of your wrist is what fuels it. The reserve is, after a couple of hours wearing it, up to 40 hours total. The way you easily can see the mechanical portion is by looking at the mechanical hand that moves in small 1/5 secs increments, not like a quarts that moves in increments of a second a time.
To obtain a chronometer rating the watch has to meet +6/-4 seconds a day during different positions and temperatures. So that equates to 1 second +/- 5 seconds a day.
As with a new car it takes a little time to brake in, so don't expect this kind of precision until after 2-3 months of continuous wearing it. But once it has been broken in, it has this precision.
Since this watch is mechanical and has a a bunch of small wheels and levers inside you are supposed, pending usage, to have it maintained/lubricated once every 2 years by a professional, just like you car having it's oil changed.
I can only say that I love this watch, and if you shop around a bit you can acquire this watch for about $950. The model I own is a 2531.80, but if you want a little more precision and you don't care about the mechanical wonder, you can go for the 2541.80 which is a quarts watch and as such have a precision of +/- 15 seconds a month.