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I've just serviced an ETA 2783 using the knowledge gained from Marks videos and this forum and had to publish before and after results , probably not perfect by a long way but to say i'm pleased is an understatement. Thanks all for giving me the knowledge and the confidence to tackle it. Sorry i didn't take pics along the way , i was to busy concentrating lol. Before After

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

Hi Roger, that's exactly what I do. I either wear it or have it running on my watch winder for a couple of days.

Here's a pic or two of the watch with the new strap fitted. The strap is actually 18mm but it fits just fine and is just the kind I was looking for. I am really happy with the way it turned out. I actually got the strap from Timpsons for just under £20, they actually have a nice selection of good quality leather straps. They offered to fit the strap and if I wasn't happy with the fit they would take it off for me, no obligation. Can't say fairer than that.

Hey everyone how is everyone here is one of my watches in my collection Sent from my SAMSUNG-SM-G925A using Tapatalk

This is my speedy with a carbon strap saying hello friend .Taken in same pose . Have a little problem with but haven't fixed it yet . The watchmaker thet did they last service didn't center the hour sub chrono . So it stops right before the 12 marker . Easy fix but haven't been done.

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

right. Just manually put everything into the timegrapher and I now see the beat rate was auto set at 28800. Re-set it too 21600 and the movement will now not register the output as it is way too high. I reckon someone has married two separate components in the past. I will see what the person I bought it from has to say. Thanks for all the useful comments and tips, if nothing else we all hav3e some new info on this complex subject. Thanks all Keith

Congrats Andy, well done, you must be chuffed. I remember the feeling when I completed my very first service, such an amazing feeling.

Marc excellent post. This watch guy has cracked it. Check this link really ,really good explanation. PS where do we get adaptor bridles!!!!

New addition to my omega speedmaster what do yall think carbon fiber band with omega buckle Sent from my SAMSUNG-SM-G925A using Tapatalk

Well done Andy, it's a great feeling when things work out well! :)

Welcome to the forum. Is it movement parts you need or case parts . Have you read this?http://www.crazywatches.pl/benrus-dial-o-rama-direct-read-jump-hour-1957

It seems to have a broken balance staff. Check the end shake of the balance wheel. If it's shaking a lot then that's it. Sent from my iPad using Tapatalk