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By Neverenoughwatches · Posted
You do, there was a bench one on ebay last week that had a small adjustable resting table which mine doesn't have but it was nearly 10 times what i paid. I think i do ok with mine and have measured lots of staff and some jewel, i have a very light touch and stable hands which is one of the reasons ive stayed with the hobby. I have yet to get my head around how "EVERYTHING" works 😅 -
Hi all of you, I've just got a new pocket watch, a Wyler, which seems to have a very unusual shock protection. I've read that this Incaflex system is very efficient, but I don't know when that kind of Watch was made. https://1drv.ms/i/s!AmSEWqSryKqAnAb7mbsiJzG4-xdi?e=jErjHQ https://1drv.ms/i/s!AmSEWqSryKqAnAfGKtL43Fb-ip8F?e=Rb1KMn
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By rjenkinsgb · Posted
Re. rust removal: I'm using a formula created by one of the science channels on youtube (Elementalmaker). It's cheap, not acidic and works in a similar way to evaporust, but seems milder. It has worked well on everything I've tried it with so far, with no detrimental effects. The formula is: Per 100ml deionised water; 5g Tetrasodium EDTA [from amazon or ebay etc] then enough citric acid to bring it to ~6.5ph, testing with ph paper, plus a few drops of washing up liquid / dish soap. I've only made one, 100ml batch so far and it shows no signs of stopping working, though it is starting to look a bit murky! These spring winding arbours were the worst rusted items I've put in it - they had quite heavy scaled rust patches; you can see the darker grey areas where the rust ate in to the metal, compared to the untouched areas. The small clock parts are unaffected by the solution, other than the rust having gone. (I've also used it on such as setting levers & other keyless components, that had quite significant rust from water ingress). -
No, the Peseux 7040 is doing very well as far as the rate (and amplitude) is concerned. The maximum delta measured was 20 seconds between fully wound, crown down (+8 s/d) and fully wound minus 24 hours, crown up (-12 s/d). Compare that to the ETA 2763 having a delta of over 80 seconds. What I was trying to convey was that I observed that the much higher amplitude of the Peseux movement during a 12-minute measuring period could momentarily fluctuate by 30° just like the much lower amplitude on the ETA 2763. I haven't studied the History graph on @praezis PCTM software for any other than these two movements but I wouldn't be surprised to learn that these fluctuations in amplitude during a 12-minute measuring period are the rule rather than the exception for all typical non-high-end-chronometer movements. This graph is from my most reliable movement, an ETA calibre 2804-2. It too is a manual wound movement. Over a 12-minute measuring period, it is clear that the amplitude is constantly fluctuating. The average amplitude, as can be seen, is 292° but the delta is 26° So, I would think that rapid fluctuations in amplitude are perfectly normal. The reason I bring this up is that it is sort of new to me and not visible in the same way on a Weishi TM. On the Weishi there's only a number for the amplitude to look at it doesn't seem to change very often.
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