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Posted

Hi,

I am working on Breitling with Dubois Depraz chronograph module. Is there any technical documentation in terms of lubrication and assembly? 

I am looking at Mark's videos which are great but was wondering if there is something I could actually print out.

Thanks!

Posted

No there's isnt any, here some answers for this kind of question that pops up every once in a while:

DD does not publish any specification about their products.

DD does not sell spare parts to anyone.

DD does not service or repair their products with the possible exception of their OEM customers, under a secret business agreement.

[not technical rant starts]

DD does not advertise or otherwise make themselves visible, for the joy of their OEM customers.

Are you a watch manufacturer? Then the choice is your, design and manufacture your own cronograph movement at the cost of very many million francs, to be prices many thousands for a chance of be profitable,

Or, buy a ready module from DD, for a chance of selling the watch starting 1,000 CHF possibly. 

Posted

I have one on my Tag Heuer 2000 Chronograph I'm going to tear into as soon as I get this cursed Omega 565 off my desk.

I'll just wing it I suppose, as I was planning on asking the same question.

The good news is that I have two complete movements; hopefully one makes it off the desk alive...

Posted

I think Christian at Watchguy did a tear down of one of these. May be worth checking his documents page. 

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    • Well, my fundamental stance is that I want to go in and out without leaving any trace other than a shining, perfectly running movement. So, no scratchings on the inside of the case back lid, no marred screws, no debris, no fingerprints, and so on. That is, my goal is to make it impossible for the FBI to track me down. As a professional, I suppose you might want to keep track of returning watches, but as @JohnR725 mentioned, we can keep detailed computer records without marking the watch at all. That may not be true for every watch, but luxury and COSC-certified movements do have unique numbers. John also says it’s best to leave no sign you were ever there, and I couldn't agree more. Now, suppose the Sea-Dweller I'm working on is one day scrapped, and you want to sell the case-back separately (perhaps the case was destroyed in a plane crash). Then the scribbles on the inside no longer reflect the current movement inside the case. Also, the engraving will likely halve the market value of the case back. It had been "sleeping" for about a week and a half. Yes, the "debris/old lubricant" theory is my hypothesis as well! It will be interesting to see what I find once I have time to start disassembling the movement.
    • I've repaired a few of these, having some success with stripping and cleaning the mechanism.  They are so cheap though, its hardly worth the effort in many cases.
    • Get well soon Old Hippy, torn muscles.,  not good
    • Id love to see how he has the output shaft mounted to this setup, as I have the same rotary stage and stepper in my build.
    • If you see at least one thread protruding, or even a half, then you may have a chance using this "tool", but don't squeeze hard. Lot's of patience, and if you notice any signs of loctite or other adhesives, then apply several drops of acetone on top of broken stem. Use heat (hair dryer) also. You should be able gradually turn it counterclockwise, just like i did on this broken Timex stem, which was glued with something like nail hardener. Then you can use an extender to save your broken stem. https://m.media-amazon.com/images/I/513DVvkfW5L.__AC_SX300_SY300_QL70_ML2_.jpg   You can also try cutting a small grove / slot on top of the broken stem to use 0.7mm flat screwdriver.   Depending on the Crown material and Stem material, you can try dissolving the stem. 
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