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AP1875

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AP1875 last won the day on September 19 2016

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About AP1875

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  1. AP1875

    Cap jewel

    That’s a great tip, I’m going to buy a little Vac to do the same! I already have an LED lamp setup under the desk and I’ve been quite successful. I think confidence has gotten the better of me, before this week it’s been a while since I’ve lost any parts. Mainly due to buying decent tweezers I think Sent from my iPhone using Tapatalk
  2. AP1875

    Cap jewel

    That site is really good, fair play to them for taking pictures of every part. I will definitely use them when possible. I found these on cousins by chance so I’m feeling relieved I also ordered a container of the mixed jewels as suggested so thanks.. Sent from my iPhone using Tapatalk
  3. AP1875

    Cap jewel

    Working on a 2892-2 yesterday and I sent the balance lower cap jewel into orbit. I have two options and I'm struggling with both due to lack of knowledge. 1) Buy a new Seitz jewel and fit - When on the cousins website https://www.cousinsuk.com/category/jewels-seitz all the cap jewels bar one type are obsolete am I looking at the correct section? Can anyone tell me what size jewel is used in the lower block, I would measure the top but ive heard they're different sizes. 2) buy a new lower block and remove the cap jewel, is this one correct, shows as 2892a2, assuming they're the same? Thanks for any help
  4. AP1875

    Help identifying ETA part

    Missing 2892-2 jewel Sent from my iPhone using Tapatalk
  5. AP1875

    Help identifying ETA part

    That's a great site, the descriptions are so much better and the have the part number to match... Thanks I replaced the damaged parts I found whilst servicing the movement, all was going great until I removed the lower jewel from under the balance. I opened the spring and removed the jewel to my bench split it to oil and PING slip of the tweezers and it's still probably in orbit somewhere... so frustrating.. Anyway can you buy just the jewel or do you have to purchase the whole 'setting'? I believe it's part number Inca 09.956.20 Lower Shock Bloc INCA995620 It's £15 to replace so that could be a costly mistake. Also I've realised this is a 2892-2 NOT 2892-A2 are the parts interchangeable, ive bought a 2892a2 barrel complete to swap into the movement as I don't have any winders yet...
  6. AP1875

    Help identifying ETA part

    Thanks for the help guys, just for future reference. How do you get to ETA part number (1485 etc) from the info in the tech sheet?
  7. I need to replace this 2892A2 part I believe it is item number 25 on the ETA tech sheet It is listed as ‘reverser assembled’ on the tech sheet but no such name exists on Cousins. Assuming I’m looking for the correct part? How do I get an ETA part number so I can purchase from Cousins? https://www.cousinsuk.com/category/filter/eta-esa-movement-parts Thanks Sent from my iPhone using Tapatalk
  8. AP1875

    2824 21,000 bph

    Yes, I’m not concerned and realise you get what you pay for. Usually they try and replicate a genuine movement. It’s not a 2824 so what have I paid for? 2846, 2840,2842? I obviously realise it’s not a genuine eta movement but I’ve not seen a low beat movement in this layout before so wondering which version it could be a clone of Sent from my iPhone using Tapatalk
  9. I’m a bit puzzled, I bought a 2824 off eBay ($30) and when I received it I placed it on the timegrapher. I was expecting 28,000 bph but it’s running at 21,000... so it’s not actually a 2824, although it’s the same layout. Any ideas what this movement is with the lower beat rate? Sent from my iPhone using Tapatalk
  10. AP1875

    Clone 7750 problems

    Thanks for the article interesting read. Couldn’t see any indentations on the pinion though Here’s the post And the gear (Apologies for being out of focus, I need a tripod). I guess it’s the same as fitting a hand to the sub dial except its operating as a gear. I’m still thinking a tiny dab of glue but could be completely wrong. This movement probably came out of Chinese factory from things I’ve heard before I wouldn’t be shocked if they use a tiny bit of glue... If you’ve ever had a loose sub dial hand after removing it, how do you create a secure fit? Sent from my iPhone using Tapatalk
  11. I’ve serviced a few basic movements now with good results so I wanted to move onto a chronograph movement, with the 7750 being the obvious choice. I don’t have the money to buy an ETA 7750 right now so I’m playing around with a clone I bought from another forum. It is clone from a replica Audemars Piguet watch and it has extra gears to move the seconds sub dial to the 12 position. Now, I took it apart ready to follow Lawsons 7750 guide but didn’t realise there were all these extra parts. So instead of moving on to the tutorial I planned to reassemble the extra gears a few times, just so I can remember how to do it. There are 4 extra wheels just to turn the seconds hand, 5 wheels in total.. what could possibly go wrong.... Here are the bottom two Then you place a plate on top and those wheels turn the 3 on top with wheel 5 holding the seconds hand My issue is wheel 1 is no longer transferring power past wheel two. Once the the plate goes on and I place on wheel 3 it runs for a while then stops, if I place on wheel 4 it stops immediately. The movement is still running when the wheels stop. Would I be right to assume wheel one is slipping on the pinion it’s pressed onto (same way you would fit hands at seconds at 6 position) thus not having enough power to move the other gears? When I removed wheel 1 originally it shot off, now it is very easy to remove. Could it have been glued on? Would applying some glue stop wheel one slipping? I can’t see any damage to the gears or dirt so I’m really struggling to see it being anything else. Any input really appreciated on this my heads getting sore from banging it against the wall.... Sent from my iPhone using Tapatalk
  12. AP1875

    Clone 7750 has a few extra parts

    oops I mean seconds at 12 not 9
  13. AP1875

    Clone 7750 has a few extra parts

    The plate in the background of the last picture then covers the movement ready for dial backplate and dial Sent from my iPhone using Tapatalk
  14. AP1875

    Clone 7750 has a few extra parts

    Hi Nick, I can take some better pictures tomorrow. You’re correct I want to remove the three wheels covering the date disc. The wheel next to date number 27 picks up easily, the other two wheels at 23 and 17 seem to be seated fairly tightly. This plate was on top is that the same as an eta 7750? I believe ther’re extra gears to facilitate seconds at 9 position Sent from my iPhone using Tapatalk
  15. AP1875

    Clone 7750 has a few extra parts

    Nobody working on these? Sent from my iPhone using Tapatalk
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