Positive emotion -rep 6497 power reserve~80h

[sul]

Last rep IWC what I bought movement is chinese 6497, but it has some kind of a" dual-winding box".

Very pleasant surprise was that this dual-winding really work`s. Power reserve is surprisingly good- approximately 4 days ~80hour. Not bad for a ~110$ rep and watch is quite accurate time keeper also

[Member X]

Wow, that's not bad at all.

Pics?

[sul]

Wow, that's not bad at all.

Pics?

Unfortunately I don`t have camera with macro lens, but I try to take some pic`s soon

[RWG Technical]

I would like to see this as well. The 6497 is mechanically designed to run for 48 hours, I am really curious to know how they doubled this run time, it's like saying your car suddenly gets twice as far on the same gas tank and engine...

[slickdick]

Where did you get it?

[ubiquitous]

Double winding? Is this maybe a double barrel configuration? Seems unlikely... But who knows?

[coolfire]

I think everybody would be interested in seeing pics of it...

[RWG Technical]

Double winding? Is this maybe a double barrel configuration? Seems unlikely... But who knows?

Possible, but where do you put the extra barrel? There isn't any spare room on a 6497 to fit another barrel the same size as the original one, which is what you need to get the extra reserve...

Something doesn't sound right, pics will clear it up.

No macro lens needed for the pictures we need, just a clear in focus picture of the movement at the highest resolution your camera has. Make sure it's in focus even if it means being 2-3 feet from the watch, you can then crop the picture with any photo program (I use paint which is standard with windows), post the picture of the cropped shot and we'll have a look see...

[sul]

Yesterday I did some pic`s, but I was to tired to upload them somewhere.

Today probably I will edit my post in the evening and add some pic`s. I was surprised also if watch was still live and working on third and on fourth day morning.

[sul]

I can`t edit my previous post. But here are pictures.

Maybe I am wrong but this my not be 6497 movement at all...my bad-wrong topic title , it look`s different than 6497.

Sales description say`s that 6497...but I don

[lanikai]

[Stukov]

What was the source of this? Link please!

[slickdick]

Its dual winding for shure, but no unitas version of any kind. Interresting movement though.

[FxrAndy]

Never seen one of theses either, i have had 50 to 52 hour out of asian 6498/7 in the past, but that is no 6498, 80 hours is a nice power reserve where is this from??

[RWG Technical]

No idea what the model of that movement is.

It certainly isn't a ETA or 6497...

[sul]

Where did you get it?

Sry for late replay, check Narikaa site, he is selling these model`s also

[slickdick]

I saw it on narikaas gallery yesterday, too bad its sporting the night/day indicator.

[seymur]

It is 6497 as site says but I think moded version here on sell on Watcheden.

http://www.watcheden.com/iwc-classics-moonphase-black-dial-with-custom-modified-unitas-6497-manual-movement-i-34876-p-1.html

Never seen one of theses either, i have had 50 to 52 hour out of asian 6498/7 in the past, but that is no 6498, 80 hours is a nice power reserve where is this from??

[slickdick]

It is 6497 as site says but I think moded version here on sell on Watcheden.

http://www.watcheden.com/iwc-classics-moonphase-black-dial-with-custom-modified-unitas-6497-manual-movement-i-34876-p-1.html

Just because its on some website it doesn't mean its the truth, take wikipedia for instance. It is not even remotely close to any form of a unitas movement.

[seymur]

Ok than not looking any unitas I am agree with you ..So what do you think which is than movement it is?

Just because its on some website it doesn't mean its the truth, take wikipedia for instance. It is not even remotely close to any form of a unitas movement.

[seymur]

I think this is also dual wind but diffrently decorated

http://www.watcheden.com/pic.php?p=BXRZKwBrBWJRcAFvAHpQVlJtVWEHNAQyVWdWZVExADEBJlosVTgBZwckCDgMJFF4Aj0DMFU1BHQBb1RiBWA=

[FxrAndy]

It is 6497 as site says but I think moded version here on sell on Watcheden.

http://www.watcheden.com/iwc-classics-moonphase-black-dial-with-custom-modified-unitas-6497-manual-movement-i-34876-p-1.html

nothing 6497 about it, not single bit

[automatico]

PTS Resources Z2015...more or less.

Here it is:

http://forums.watchuseek.com/showthread.php?t=303934

Maybe the autowind works are removed and a different plate installed for manual wind models with regular balance assemblies.

Who knows?

[FxrAndy]

It looks like a thin plate in the pictures added over the back

[sul]

It looks like a thin plate in the pictures added over the back

Yes that is right, I open my watch and there is thin plate over the movement, but unfortunately again I did not take pic`s from movement himself. Max power reserve what I got was 86 hour( fully winded). Don`t know how long-life that movement is but first(user) impression is - not bad.

It can be this movement:

http://www.ptsresources.com/watch_automatic_01.htm

Z2015 Mechanical Skeleton Watch Movement

copy/paste from other forum:

This movement was probably manufactured by the Liaocheng Watch Factory as it uses an identical keyless-works as their F-series open-heart. The design is probably owned by PTS rather than Liaocheng as the catalogue says "HK registered design application number 0802073.3"

PTS only claim ~72 hours for this one. So I reckon you're right that it probably has a couple of 40 hour springs. As these are working on the Favre-Leuba/Slava principle, they don't add up to 2 x 40 hours. The primary purpose of the double mainspring is to ensure that the spring delivering the power to the train remains 'full' for more than a day, ensuring auto-like torque consistancy even when the watch is left to wind down for a bit.

Edited September 17, 2009 by sul