Jump to content

Breitling Blackbird ETA 2892-A2 w/ Dubois Depraz 4500 'big date' stem removal - am I being dumb?


Recommended Posts

Bit of a weird one, and I'm sure I'm just being idiotic, but it's always worth asking before doing any damage!

It's a Breitling A44359 'Blackbird', which seems to have an ETA 2892-A2 with a Dubois Depraz big date module (4500 maybe?), and I'm stumped as to how to release the stem. If I use the normal 2892 setting lever pin to release the stem, it does so, but then the stem only moves out a mm or so and no further. Having a closer look, the stem is passing through/linked to what seems to be a clutch wheel of some kind (moves back and forth with the stem, and will not pass through the case). This is the first time I've seen a case ring quite like this. The watch runs fine. I just wanted to blow the many dust particles off the dial and give the interior side of the crystal a clean (doesn't show on cam, but there are remnants of a finger print in there). Looking at the movement I don't think the last person to work on it was particularly sympathetic..

I've taken some pics, but I'm not much of a photographer!

 

20230404_185115.jpg

20230404_191116.jpg

20230404_191402.jpg

Link to comment
Share on other sites

 First time I attempted to service one these , I asked for advice from my late watchrepairman, he had over 56 years of experience. ( Pardon me please ), he said   " Dubois depraz will service you ".  😩 , he was right.

My expensive experience is yours now for free, you see, things can unexpecdly go wrong. 

Rgds

Link to comment
Share on other sites

58 minutes ago, RichardHarris123 said:

Pull the crown out to the second position, time setting, then push the button.  Should come out. 

No dice. The stem is released, moves maybe a MM, and then no further.

 

10 minutes ago, Nucejoe said:

 First time I attempted to service one these , I asked for advice from my late watchrepairman, he had over 56 years of experience. ( Pardon me please ), he said   " Dubois depraz will service you ".  😩 , he was right.

My expensive experience is yours now for free, you see, things can unexpecdly go wrong. 

Rgds

I don't want to service the module 😄 Just remove the movement. Someone will know how to release the stem, I'm sure.

Link to comment
Share on other sites

8 minutes ago, onecarefulowner said:

No dice. The stem is released, moves maybe a MM, and then no further.

 

I don't want to service the module 😄 Just remove the movement. Someone will know how to release the stem, I'm sure.

Oh, no shortage of master watchmakers on this here forum.

keeping fingers crossed , there be no mishapp. 

Good luck 

 

Edited by Nucejoe
Link to comment
Share on other sites



  • Recently Browsing

    • No registered users viewing this page.
  • Topics

  • Posts

    • I voted.for the 6.99 assuming £, which works out to $8.74US at the current exchange rate.
    • £4.04 originally worked out to $5, or thereabouts accounting for currency fluctuations. Inflation calculator from 2020 (when the thread was started, though not when Andy coined the term) says we're looking at $6 currently. What currency is the 6.99 inflation adjusted figure cited in the poll? $6 may still seem restrictive, but don't forget that's part of the point. It's a challenge. Thrill of the hunt and all. Diamonds in the rough. Also, and my personal angle on the game, a fun and inexpensive way to learn watchmaking skills.
    • Dear all My first experience servicing a quartz watch after servicing as an hobby my mechanic watches for many years. This is an old Certina that was given to me by a friend, with  a ETA/ESA 9362 movement. Before service I put a new battery and the watch was working. After servicing the movement stopped working. i understand that there might be a lot of reasons for this (including the fact that I used technics and oils from mechanic movements on this one  ), but at this stage I would only need to check if the electronic module is good. Don't have a quartz tester but only a multimeter. You will see on the photos that the battery contact is broken and needs soldering. With the battery in the movement I can confirm that the electronic module had power (1.57v). Question: what basic tests can I do with a multimeter to confirm that the electronic module is good? how to check if the coil is good and if there is pulse in the electronic module? what contacts should I use to test it? (I saw some videos on you tube but was not able to find the specific test procedures for the ETA 9362). Any information to help me check if the reason for the movement to stop is on the electronic or mechanic part of the watch is much appreciated. Many thanks
    • Dear all My first experience servicing a quartz watch after servicing as an hobby my mechanic watches for many years. This is an old Certina that was given to me by a friend, with  a ETA/ESA 9362 movement. Before service I put a new battery and the watch was working. After servicing the movement stopped working. i understand that there might be a lot of reasons for this (including the fact that I used technics and oils from mechanic movements on this one 😞 ), but at this stage I would only need to check if the electronic module is good. Don't have a quartz tester but only a multimeter. You will see on the photos that the battery contact is broken and needs soldering. With the battery in the movement I can confirm that the electronic module had power (1.57v). Question: what basic tests can I do with a multimeter to confirm that the electronic module is good? how to check if the coil is good and if there is pulse in the electronic module? what contacts should I use to test it? (I saw some videos on you tube but was not able to find the specific test procedures for the ETA 9362). Any information to help me check if the reason for the movement to stop is on the electronic or mechanic part of the watch is much appreciated. Many thanks    
    • I have bought without seeing inside before and have generally been luck Michael. If its a screwback case i seem to allow some leniency on the removal of it, i dont know why because I've never struggled to remove a back with very basic equipment.   If everything is inside them, then once restored and keeping time the oris could be worth 20 -30 each, I've paid a lot more Oris date pointers in the past.
×
×
  • Create New...