Jaeger-LeCoultre Reverso

UPDATED: Audemars Piguet Royal Oak Concept Acoustic Research Episode 1 Watch
We have said this before and will say it again: while?unceasingly impressive from a technical point of view, traditional minute repeater wristwatches?tend to have a soberingly underwhelming sound when operated and experienced personally. This is the?result of thick cases done in precious metals?like gold and platinum, as well as?the ancient layout?and functioning?of this centuries old mechanism.?With?their?2015 concept piece called the Audemars Piguet Royal Oak?Concept Acoustic Research Episode 1, the Le Brassus-based manufacture?strives to join the extremely close circle of high-end watch brands who have set out to improve upon the acoustic performance of this mind-bogglingly complex, and yet in some ways obsolete?complication.The?case design will be familiar to seasoned watch enthusiasts: it is the?Audemars Piguet Royal Oak Concept with its unusual, angular lug structure.?As per the norm, it is this case that?carries the brand's experimental calibers, which pave its way?into uncharte

Chronograph Question?
My 3572.50 is running about 11 seconds fast. I started the chronometer at zero seconds synched with Official US internet time clock. Now when I checked about ten hours later, the Speedy was still running about ten seconds fast however the chronometer second hand was running 5 seconds slow. Is this possible? I thought the two second hands would run at the same rate.

Do you authenticate your Patek if not bought from the AD?
Just wondering how you guys go about it.Would you pay the Patek Service Centre to Authenticate the watch? Or do you have a specific way to be sure yourself?I know it is hard to replicate such a detailed watch like the Patek, and surely it should not be hard to know when wearing the watch, looking at the dial, the case back movement, etc.Also wondering if all Pateks have the Serial number visible on the case back?Surely matching that with the papers is the way to go. Doubt that can be forged.What do you do generally when purchasing from another seller?

Pam 243 or Pam 305
Hi guys, I have an opportunity to pick up either one of these 2 Pams, apart from the size difference and WR, which is more comfortable on the wrist long term, hope owners past and present can chime in.Thanks in advance!

Question on a "collectors" piece.
I am graciously falling into a collectors unworn piece from 2004. I think I should buy one similar to it and hold on to the collector and keep it for posterity. Am I being anal or is it normal? I hate to wear it and muck it up when I could easily hold on to it and have a museum piece to keep for a while. Your thoughts?