GenTLe 1,510 Posted October 30, 2014 PM JSJ I may know where he will address you Share this post Link to post Share on other sites
GenTLe 1,510 Posted November 14, 2014 Rebuild completed There the shots, hope that they'll be useful to someone and that our Horologist can check them and tell me what I have done wrong (if mistakes are present). Side note: some shots have been taken before I absorbed with some absorbing paper the excess of oil when it happened. First of all, my new tray, very confortable to fit the parts divided by sectors. Here with the 7750 fully unassembled. I used to piece of paper not to mix the plate and balance incablocs. The main plate, clean and ready to receive the parts: Et voitlà: keyless up! The other side of the plate, with the pallet fork, already with its Moebius 9415 on a pallet stone Up the balance and its cock, and already oiled the jewels around (HP 1300 for the slow gears, 9010 for the fast ones) Measuring the running second pinion: Up the barrel and the gear train. Later on I substituted the barrel with a gen ETA one: it fits perfectly Up the barrel bridge. I put a bit of Molycote DX Litium grease also on the crown wheel to make the handwind smoother Starting to assemble the chronograph parts: Up the chrono bridge. On the left is visible the autowind click. When it get out of place the watch can't be autowound because the counterweight act as a discharge disc... A particular of the chrono reset hammers, with the tiny layer of Molycote DX grease on them A particular of the tiny oscillating pinion, a bit difficult to make it goes in place Chronograph part nearly ready (reverse gear and reset hammers still not in place) to receive the autowind bridge... ...and with autowind bridge installed Movement rotated to the other side, with day/date change gears (on the left) and hour chrono register (on the right) and it's reset system. That little spring on the right is pretty difficult to fit... A side view with the pinions exposed. The finishing at these magnifications looks so weird... Up the calendar bridge/platform: Here an interesting detail. on the left/up the gen ETA double corrector, on the right/down the asian one. Both have a kind of clutch system (the washer spring), so in both cases it you try to change the day/date with the day and date drive wheels engaged, the clutch will prevent damages: Everything UP except the day wheel. Near to nr. 19 on the DW you can partially see another spring which is not that easy to fit, now covered by date jumper maintaining plate: Completed! It is now running (with chrono engaged) since 14 hours. This evening I will recharge it and let it another day running upside down, and then within 2 days I'll calibrate the 2 chrono springs that need it and the balance to go nearest possible to COSC. In the end it's not so "demoniac" as one could thing. The only thing that scares me about this movement is the removal and placement of the hands, especially the chrono center second, which I managed to split from its tube when I disassembled it first... Cheers, GenTLe Share this post Link to post Share on other sites
SSTEEL 0 Posted November 14, 2014 Bravo mate, well done. How long did it take you to install the Oscillating pinion? My first few attempts really tested my patience, and took me best part of a few hours, but not, I can usually get it fitted in less than a couple of minutes. Share this post Link to post Share on other sites
BadPickle 2,783 Posted November 14, 2014 Nice work mate, I have a dateless version with a keyless issue, uncased with hands and dial removed just waiting for me to pluck up enough courage (or stay sober) to dive in. I've started to work on it a few times now, but this might just be the nudge I need to give it a shot. I've got a couple of other threads, one from 1littlegreen and 1 from next door, but this makes things clearer in my mind. Again..... Great post Share this post Link to post Share on other sites
Paparolf 45 Posted November 14, 2014 Wow, amazing and skillfull. I will stick to making boxes me thinks! Share this post Link to post Share on other sites
Hornet 1 Posted November 14, 2014 Brave, brave man! Share this post Link to post Share on other sites
GenTLe 1,510 Posted November 14, 2014 Bravo mate, well done. How long did it take you to install the Oscillating pinion? My first few attempts really tested my patience, and took me best part of a few hours, but not, I can usually get it fitted in less than a couple of minutes. Thanks Micky The pinion itself like 5 mins, the problem was the reverse gear click that was pushing on the reverse gear, moving it and also moving the oscillating pinion superior lever that was therefore lift and leaving the pinion unallocated in its upper part... Share this post Link to post Share on other sites
Odyseus 1 Posted November 14, 2014 yep it's always replacement of the hands that gives me a headache!!!! Share this post Link to post Share on other sites
GenTLe 1,510 Posted November 14, 2014 Again..... Great post Wow, amazing and skillfull. I will stick to making boxes me thinks! Brave, brave man! Thanks you all It is not that terrible task, but takes like 8h in total (from fully asembled to fully assembled with all that comes in the middle), so it is obvious that: 1) Micky is not asking a lot for this job 2) professional horologists that charge 40/50Eur/h are not happy to deal with them. How can they charge 200Eur (if they are FAST) on a 250Eur rep owner? Share this post Link to post Share on other sites
