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Its the centre seconds drive wheel attached to a extended pivot on the third wheel in the case of this movement the seconds hand pinion should be in the centre of the movement and held in place with a spring. On this movement that has been broken and only the end is seen attached by a screw on the barrel bridge and the second hand and pinion are missing

Put this way: you wont do any harm either way, so it's up to you. I must say I'm not quite sure what movement that has off the top of my head, can you tell me the movement number? (just incase i have anything more helpful to add) Unless that is also the calibre number? Picture maybe if you care to.

Thanks everyone, actually everything is all good i looked at this morning and wasn't awake and thought it didn't change. I did use the tech documents went i serviced it.

Yes, the electric field (E&H) from the de-gaussing transformer (50Hz) UK, overrides the stepper motor control pulse and makes it run at a random rate. Most de-gaussing equipment for this purpose is an "open" primary coil with the I`s missing. Just the E`s are used as the former. The watch should be moved 2-3 feet away slowly from the the source whilst it is switched on. The electric Field then reduces over distance by inverse square law. I hope this helps.

Well yes, If you think of a quartz watch it generates movement through a small magnet which is given its torque to turn by the magnetic field generated around it, a considerably weak one normally. so often if a quartz watches oils start to dry or a bit of dust gets in the wrong place it grinds to a halt. Introduce a second, much more powerful, higher voltage (yet not powerful enough to overwhelm and damage the wheels) magnetic field generator, one that also oscillates much more rapidly, you can imagine how that will dislodge minor blockages like specs of dust and free up the movement of the gear train etc. So to answer your question about testing, "kind of" you can't prove a negative (the negative of there being no problem) but if you can find the right spot to place the watch and make the seconds hand do a couple of rotations without the hand hesitating, just progressing smoothly, then it's a good indicator that the gear train and motion work are in reasonable health. Yet that test alone won't tell you if the circuit board or coil are okay, the demag, as far as i know, doesnt work through those parts but directly effects the stepping motor. Also just a point of clarification in case i wasn't clear, i don't use this jump start method unless the watch fails to start up properly with a new battery.

I believe this works in the same way as some battery testers' "line clear" function that I've heard about before, but I use this regularly to 'jump start' and get less expensive quartz watches going again when doing battery changes. A bit like the circuit test function some battery testers have (that beep every second when detecting the electrical impulse remotely) you can use this as a basic - not full proof - diagnostic test, like the circuit test, will often show a problem it wont show every problem or give you a lot of information, but if you cannot make the hands do a full rotation no matter how you play with the position of the watch on the demag, it suggests that there's a blockage or broken tooth somewhere. Word of caution: it's best to not do this to a watch with the battery present.

Dude! Nice find! by the way, in google chrome you can right click -> translate to english and voila!

Well logic would dictate that if it was assembled then it should disassemble I think the micrometer part should lift out from the top once the screw is removed or that appears to be what this chap has done with his, pity the site is in Chinese but there are pictures, http://www.kwanghun.com/3hands/index.php?document_srl=181782&mid=hkhdiary

Excellent write up JD, thanks for sharing...

I bought a set of these cheapies from Esslinger and believe it or not , I have used them about 4 or 5 times and have had success each time . Some screws came out easy , but some of them I used a bit of penetrating oil first , then put the watch plate in a bit of warm water in my ultra sonic cleaner for a while to vibrate the part .

If you want sharp crisp detail on your watch with no scratches or dings, leave it in the box. If you wear and enjoy your watch it will get scratched, dropped, banged against things and show signs of use. You can then make a choice, polish it and make it shiny again or live with the patina. What you can’t do is make it look new again. Enjoying my watches every day... Neil Sent from my iPhone using Tapatalk