Letters To The Editor: How Modern Watchmakers Are Grappling With One Of Breguet's Greatest Inven
This is a wonderful question, that deserves a careful response.Before we can talk about the natural escapement, let's get on the same page about what an escapement does. In a mechanical wristwatch, an escapement translates rotational energy into lateral impulses that is, it turns the rotating of gears into the back-and-forth movement of the balance wheel.  There are lots of different types of escapements, but the most popular (by far) is the lever escapement. The lever escapement gives the balance wheel a push in each direction, causing it to oscillate until the watch runs out of power. Laurent Ferrier's natural escapement in action The lever escapement does this by introducing a lever (the pallet fork) in between the escape wheel and balance staff. The lever escapement is so popular because it is easy to manufacture and adjust, while being very sturdy. The problem with the lever escapement is that the type of push, or impulse, that it uses produces s

J serial Diver runs fast on wrist, is it normal?
Hi all,I'm new to AP and just got my 15710 Diver recently. I've tested it for few days and found that if I let it rest on the table with the crown down position, its accuracy is almost spot on; once I put it on my wrist, it ran fast and gained about 1 second every two hours. My question is, is it normal for the calibre 3120? Does it sound like a re-banking issue?Many thanksLi

The Best Patek Collection?
Thinking out loud... what is a great PP collection? Big? small? Obviously Kens is to die for, but what are those pieces that fit every occasion and life style? The 5970 and 5070 are a must? Or too much power and better have a 5167 and maybe a 5980r with a 5205 for dress events?Lets see what you guys think.

505 Opinions
I'm working with one of the well known sellers on my next watch purchase. I'm considering a 505, which would be my first Panerai.My primary concern is durability. I'm active, and the watch will be exposed to the elements. I've read early reviews discussing possible discoloration attributable to salt water or sweat. Ive also read about concerns that the composite might bubble or chip.Do any of you have real world experience or opinions regarding this reference?

Sea Dweller randomly stopped running... then was fine...?
Something odd happened tonight.I was getting dressed for the evening and I when I looked at my watch at around 6:18 it was still at 6, almost like my minute hand stopped but the second hand was still running.When I looked at the watch it was at 6 and it clearly wasn't stuck, it advanced to 6:01 as I watched it. I've been wearing it all day so I don't see how it wouldn't have been wound, but that's the only answer, right? That the reserve ran out?It's a 1999 sea dweller that I got back last week from a service when it was corrected from running almost +15s a day down to +3 a day. It's been running good and keeping great time since. Anyone have any thoughts? Should I just not worry about it?