time to update the A7750?

fernshaw · 07-28-2010, 08:12 AM

Why can't rep makers modify the Asia 7750 movement -- or come up with an alternative movement -- so the date wheel doesn't require a deep date window on the dial, a big flaw in many reps? If the Swiss can do so, why can't the wizards of Guangdong?

deloreandmc · 07-28-2010, 08:16 AM

isnt there an easy mod to fix that or something?

trailboss99 · 07-28-2010, 08:21 AM

No, there is no mod.
The Swiss don't. The watches that this is an issue on don't use a native 7750.
They are either modified 7750 ebauches or in house MVTs.

In short, the answer is 'because they don't care'. We still buy the watches don't we?

Col.

rooster133 · 07-28-2010, 09:37 AM

There is a mod to get rid of the sunken DW, but it's extremely laborious to perform. So much so that all modders I know now refuse to do it. I got it done on two watches with A7750 and it worked well.

There was talk of a 7753 rep... but I'm not holding my breath.

levelmanroger · 07-28-2010, 09:51 AM

It is rather incredible that the rep manufacturers can spend hundreds of thousands of dollars buying gen watches to use "as an example" to ensure the reps they make are "1:1", but none of them seem to be able to drop a grand on a gen Swiss Valjoux 7750 movement to take apart and use the parts to make molds for exact duplication.
But at least my Sub is an exact 1:1 Grade AAAAA++ using a gen as an example.

gurujosh · 07-28-2010, 12:32 PM

Hi Lev,

Have you got a pic of your exact 1:1 Grade AAAAA++ ?

Dr.Verylong · 07-28-2010, 01:12 PM

They can resell the watch ("Jackson Tse"s are frequently on ebay, correct me if I'm wrong), but not the movement.

What about the SW200 - isn't that a good replacement for an A7750?

KBH · 07-28-2010, 01:27 PM

The SW200 is a clone of the Eta 2824-2, if I'm not mistaken.

And the rep makers have to use movements that are available. I think I read that a 7753 clone is due out in a few months. That will solve the sunken date wheel problem. The reason it's sunken is because they have to add gears to change the position of the seconds hand. That raises the dial.

drobbins · 07-28-2010, 02:47 PM

If there is enough demand for a 7753 clone, I can't imagine that there are not people working on it. It seems that these clones come out often enough but once taken apart by the rep watchsmiths, they tend to disappoint. A decent cure to the sunken date wheel would mean many new ult versions. Breitling fans would rejoice.

Pix · 07-28-2010, 03:11 PM

A good upgrade would be to stop producing movements that beat at 21,6 kbph (the gen 7750 doesn't) and make a working micro-regulator.

The sunken DW is due to an unnatural position of the date window at 4.30. This problem does not exist when the date is at 3, as it should for a 7750

A good update also would be to have the ETA stamps engraved, as they are on the 2836 clones.
The problem is that there are various manufacturers for the A7750 (at least 3?), each with variations which don't make them fully compatible with all gen parts, and each with different quality levels.

A clone 7753 would be more than welcome.

07-28-2010, 08:12 AM	#1
fernshaw VIP MEMBER / SUPPORTER! Join Date: Jan 2007 Posts: 434	time to update the A7750? Why can't rep makers modify the Asia 7750 movement -- or come up with an alternative movement -- so the date wheel doesn't require a deep date window on the dial, a big flaw in many reps? If the Swiss can do so, why can't the wizards of Guangdong?

07-28-2010, 08:16 AM	#2
deloreandmc Level 89 Rolex Hater... Join Date: Oct 2009 Location: Where Pizzas roam wild Posts: 2,037	isnt there an easy mod to fix that or something? __________________ Thanks to QinetiQ for making the awesome picture! Call me Mcfly Matyoka: "oh man, I just had one of the worts farts ever... almost knocked me out" LUM-TEC BULL45 A5 FOR SALE: http://www.replica-watch.info/vb/sho...l45-92593.html ROLEX DATEJUST TT DIAMOND MARKER FOR SALE: http://www.replica-watch.info/vb/sho...-tt-93198.html

07-28-2010, 08:21 AM	#3
trailboss99 Head Honcho - Trainee Cat Herder Join Date: Mar 2008 Location: Down Under. Posts: 12,941 Awards Showcase Total Awards: 3	No, there is no mod. The Swiss don't. The watches that this is an issue on don't use a native 7750. They are either modified 7750 ebauches or in house MVTs. In short, the answer is 'because they don't care'. We still buy the watches don't we? Col. __________________ -------------------------- ******************************************** People always forget, the correct sequence is rape, pillage THEN burn. sfa437 ************************************************ hmm - from what I know of Guanaco all he'll do is try to make the trouble more fun.... greg_r ********************************************* ATTN ALL AUSSIES! Sign up for the Aussie GTG list and meet some of your fellow RWI watch lovers! http://www.replica-watch.info/vb/sho...ody-38833.html ********************************** Support RWI: Subscribe or Donate today! Mit der Dummheit kämpfen Götter selbst vergebens**

07-28-2010, 09:51 AM	#5
levelmanroger Sad, Pathetic Little Man Join Date: Sep 2008 Location: Texas, USA Posts: 7,446 Awards Showcase Total Awards: 1	It is rather incredible that the rep manufacturers can spend hundreds of thousands of dollars buying gen watches to use "as an example" to ensure the reps they make are "1:1", but none of them seem to be able to drop a grand on a gen Swiss Valjoux 7750 movement to take apart and use the parts to make molds for exact duplication. But at least my Sub is an exact 1:1 Grade AAAAA++ using a gen as an example. __________________ To find a local watch smith: http://www.replica-watch.info/vb/sho....html?p=503944

07-28-2010, 01:12 PM	#7
Dr.Verylong WTF? Join Date: Aug 2009 Location: Northern Hemisphere Posts: 5,147 Awards Showcase Total Awards: 2	They can resell the watch ("Jackson Tse"s are frequently on ebay, correct me if I'm wrong), but not the movement. What about the SW200 - isn't that a good replacement for an A7750? __________________ RIP T4D Sinn Regulateur 6100 Technik <here> Sinn Regulateur 6100 Classic B <here> Der Bier-und-Uhren-Thread

07-28-2010, 09:37 AM	#4
rooster133 Armed and feathered Join Date: Jul 2008 Location: Replica Watch Forum Posts: 5,361 Awards Showcase Total Awards: 3	There is a mod to get rid of the sunken DW, but it's extremely laborious to perform. So much so that all modders I know now refuse to do it. I got it done on two watches with A7750 and it worked well. There was talk of a 7753 rep... but I'm not holding my breath.

07-28-2010, 12:32 PM	#6
gurujosh I'm Coming Around Join Date: Jul 2010 Posts: 38	Hi Lev, Have you got a pic of your exact 1:1 Grade AAAAA++ ?

07-28-2010, 01:27 PM	#8
KBH VIP MEMBER / SUPPORTER! Join Date: Nov 2007 Posts: 1,880	The SW200 is a clone of the Eta 2824-2, if I'm not mistaken. And the rep makers have to use movements that are available. I think I read that a 7753 clone is due out in a few months. That will solve the sunken date wheel problem. The reason it's sunken is because they have to add gears to change the position of the seconds hand. That raises the dial.

07-28-2010, 02:47 PM	#9
drobbins I'm Coming Around Join Date: Nov 2009 Location: Long Island, New York Posts: 43	If there is enough demand for a 7753 clone, I can't imagine that there are not people working on it. It seems that these clones come out often enough but once taken apart by the rep watchsmiths, they tend to disappoint. A decent cure to the sunken date wheel would mean many new ult versions. Breitling fans would rejoice.

07-28-2010, 03:11 PM	#10
Pix Tar and feathers ! Join Date: Dec 2006 Location: E.U. Posts: 7,044 Awards Showcase Total Awards: 5	A good upgrade would be to stop producing movements that beat at 21,6 kbph (the gen 7750 doesn't) and make a working micro-regulator. The sunken DW is due to an unnatural position of the date window at 4.30. This problem does not exist when the date is at 3, as it should for a 7750 A good update also would be to have the ETA stamps engraved, as they are on the 2836 clones. The problem is that there are various manufacturers for the A7750 (at least 3?), each with variations which don't make them fully compatible with all gen parts, and each with different quality levels. A clone 7753 would be more than welcome. __________________ >My current collection and watch reviews < > Le French Corner on RWI < > Latest pictorial : HBB Tourbillon Please do not PM questions which you can post on the boards, I won't answer them : besides a question that is asked on the boards and finds an answer will be profitable for all the members. Thank you.