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Showing content with the highest reputation on 08/30/15 in all areas

  1. I just did a resto on this watch ill put before and after pics up these arethe before these are the after Sent from my SAMSUNG-SM-G925A using Tapatalk
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  2. I am now in trial stage to be able to repair oyster and jubilee bracelets. I primarily talk about repairing the stretch and looseness in the links. Major injuries that required laser welding etc, have to wait until later. The tools that I have now is not from the shelf at Rolex or by the wholesaler. It is a toolmaker who has been kind to create some special tools that allows me to take the links safely apart, and that I can push them back together without creating damage. But they will not fix the amount of stretch in the links. The pins inside the bracelet is being sanded down after years of use. Muck and other stuff that get inside the links, is as abrasive as pins and link rub against each other. This allows both the links and the pins to ground down so the space inside the links gets bigger and bigger. It is said that the more often you clean the bracelet in an ultrasound cleaner, the better the bracelet stays nice and firm. For that gap to be repaired I must insert a tube on the pins that make the bracelet tight again. The links also have different size of the wear from one bracelet to another. There are also large differences in wear from link to link, so it needed a few different sizes of tubes to be used. These tubes are not exactly cheap in 316 SS so I waited a bit with the large orders for now. Regarding President Links I must first find me a jeweler who can help me to both acquire gold, but also can shape it for me to into the right sizes.
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  3. It's always difficult to get identities of pocket watches as the movements were fitted to various cases (Gold/Silver etc etc). One popular maker of cases was Denison. If you know it's size you can do a search @ Ranfitt and you might get lucky. http://www.ranfft.de/cgi-bin/bidfun-2uswk.cgi?1&ranfft
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  4. Hi Thanks for your help, I have been to crazywatches already, he's a great guy and he's been quite helpful,i've asked him a couple of questions already...
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  5. I think it's pretty standard practice to run a freshly serviced movement for two or three days before making any final adjustments. It gives time for the mainspring to cycle through at least one full wind and for everything to settle down. It also allows for any faults in calendar works etc to show up and for everything else to settle down.
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  6. Yeah I know. Shame though cos it went for peanuts.Always got my eye out. Time for a visit to all 17 charity shops along my highstreet.
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  7. It does sound like you have some 2870 wheels in there as its running at 28800. I don't know this calibre but, are all three hands running fast? I suspect it's just the second hand. You can calculate thus calibres correct rate by counting the teeth on each wheel as pointed out by Marc. Here's an example for an Omega 561 where the barrel drives the second wheel which is attached to the cannon pinion so: The second wheel large gear has 64 teeth and rotates once per hour (3600 seconds) by definition as the minute hand is connected to it via the cannon pinion. The 3rd wheel has a small gear of 8 teeth which meshes with the large gear of the 2nd wheel. So, for one rotation of the centre wheel, the 3rd wheel rotates 64/8 = 8 times. Therefore, it rotates once in 3600/8 = 450 seconds. It also has a large gear and that has 60 teeth. That large gear meshes with the small gear on the 4th wheel which has 8 teeth as well. So, for one rotation of the 3rd wheel, the 4th wheel rotates 60/8 = 7.5 times. Therefore, it rotates once in 450/7.5 = 60 seconds. It also has a large gear and that has 77 teeth. That large gear meshes with the small gear on the escape wheel which has 7 teeth. So, for one rotation of the 4th wheel, the escape wheel rotates 77/7 = 11 times. Therefore, it rotates once in 60/11 = 5.4545 seconds. It also has a large gear and that has 15 teeth. This is the one that meshes with the pallet fork and so, the teeth pass the fork every 5.45/15 = 0.3636 seconds. There has been a little rounding of numbers in this paragraph for simplicity. This tells us that this watch beats at 2.75 Hz ( 19800 A/hour = 2.75*60*60*2) as 2.75 times per second means one beat is in 0.3636 seconds. I just copied this from something else I wrote but, it will make sense to everyone here. If I wanted to change this movement to run at, say, 28800 A/h, I could do it just by changing the number of teeth on one or two wheels. I can't immediately see a way to do it with one as it would have a lot of small teeth. Usually the fourth wheel runs at one revolution per minute as then we can easily mount a sub second hand on it. So, maintaining that but changing its large gear to have 96 teeth (was 77) and the small gear on the escape wheel to have 6 (was 7), it becomes a 28800 movement. Nothing else needs to change and it now runs at 4/3 speed (a bit like my life since I passed 50...) All you need is the correct wheels from Cousins for a 2871. Hope this help, Chris Sent from my XT1039 using Tapatalk
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  8. Welcome. I too vintage watch fan. Have good collection of watches.. I am bing fan of seiko..I am learning watch repair . I finished one, HMT.We both are of same kind. Looking forward to discuss more with you. Sent from my XT1068 using Tapatalk
    1 point
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