Which movements display the most movement when looked at through a display back?

[Der Amf]

Some movements are very pretty, but seem to be keeping their secrets well hidden:





Others give more glimpses of what's going on:



Which *non-chronograph* movements are the most intriguing to look at, in mechanical terms?

[Steppy]

Zenith Elite is pretty good (although not as interesting as the El Primero - but thats a chrono)

[Bidle]

Oef,,,,... there are so manny nice movements out there. Also the design of the movement depends a bit on where it is made and the purpose (how they want it to look). German movements (Saxony) in general have a three quarter plate. So best to look at some swiss vintage movements with manny bridges.

Personally I always like to look at movements in, more or less, two ways; 1. The construction/design and 2. The finish of the movement.



Here a movement which 'hides' nothing a skeleton from Piaget. One of the few I actually like:



and the other side:






Than a few from my collection and I only took handwinders and of course no chrono's (except the 317 which doesn't have the typical chrono lay-out)!


Bifora 120 Chronometer steel 06 by Bidle, on Flickr


Girard Perregaux cal GP03 04 by Bidle, on Flickr


Gruen Airflight 05 by Bidle, on Flickr


IWC 89 RG 15 by Bidle, on Flickr

Not mine, but such a nice small movement.

IWC kal41 05 by Bidle, on Flickr


Longines big vintage 10.jpg by Bidle, on Flickr


Minerva Pythagore 2000 RG 07 by Bidle, on Flickr


Minerva Pythagore Grande Applique 04 by Bidle, on Flickr


Omega Trésor 1949 265 30T3PC 08a by Bidle, on Flickr


Panerai 317K Black Knight 10 by Bidle, on Flickr


Rogers Supreme Chezard 116 03.jpg by Bidle, on Flickr


Union Julius Bergter Kleine Sekunde 09 by Bidle, on Flickr


Vulcain Cricket vintage 06.jpg by Bidle, on Flickr


Zenith Chronometre 135 1955 10 by Bidle, on Flickr


But really there are so manny nice movements out there. Most of them are not even known by the 'big' public.

[Berrnard]

i'll say a 6497 cause it's the only hand wind mechanical i own but for autos i like the sw200 with its usual black rotor.

[I-B]

here is the movement of my Titus :


one of my Longines' :

[-JP]

I think they did a great job on the Chronoswiss Opus which I came close to purchasing a few times. Sorry no pics from my device. I'm sure you guys seen it before. Very interesting piece.

[Der Amf]

Think these two are the best so far for giving one cogs and wheels to gawp at:

[93EXCivic]

I love this one.

Hamilton 4992B in a Athaya Vintage case.

[FuzzyB]

The subsecond movements modified for central seconds typically have the most cogs and wheels on display because they have some extra parts added on to the back of the movement. See Bidle's picture titled Minerva Pythagore 2000 RG 07 for a great example of the extra wheel and bridge tossed in.

My favorite example of a time only watch that puts all of its interesting bits on display is the RGM 801 series. Since it is based on old pocket watch movement designs, they do a great job of exposing a lot of the bits in a similar manner.



And a cased shot.

[drunken monkey]

Probably not what you were thinking.