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Sorry to keep popping up! I saw the video linked above. It’s pretty good with the exception that no sandpaper is typically used. Buffing is instead of sanding and then polishing is the finishing step. I learnt quite a bit from this video from the Lititz Technicum: Cheers! Sent from my iPhone using Tapatalk

I also like how this one turned out: Sent from my iPhone using Tapatalk

There are many ways to skin the cat.... but You can get excellent results using a felt wheel, high quality like Bergeron using a heavy cutting compound. Buffing should remove MINIMAL amount of material but the combo of 1. Felt + 2. Heat + 3. The compound will actually move material from taller sites into deeper (nicks) ones. This is where a case can lose its form and symmetry. Buffing alone won’t get you there... this has to be followed by polishing. For a nice polish a non braided cotton wheel with white followed by yellow compound really bring up the shine. I have a couple examples: Sent from my iPhone using Tapatalk

Welcome from Perth Western Australia. If you are thinking about servicing the Longines yourself I would suggest buying some cheap watches off the Internet first to practice on before you touch something more valuable like your Longines. Welcome to the forum.

I have cleaned it up and Iv'e used conductive paint to to re do the corroded parts, with no luck I hope its not the IC (Think that's what it's called) I will start a new thread about it.

This is not uncommon with the 7750 if it is powering a Breitling. I had the very same issue with the pipe detaching from the hand. I did find a supplier in Australia who supplied a genuine Breitling hand for 60$ (at the time approx. £50) there is a vid I see where you see a Brietling watch being assembled and the hands are hammered on. I found on a forum with many with the same issue recommending removing the hands with nail clippers gripping the pipe before pulling. This was post in 2016 https://www.watchrepairtalk.com/topic/4355-remove-a-breitling-hands-eta-7750-chrono/

Have a look at this. This will give you an idea what you will need. Don't forget protect your eyes. I recommend you remove the watch movement. http://www.instructables.com/id/How-to-Polish-Stainless-Steel-Watch-Basics-of-Poli/

With the master craft all springs are wound in the same direction then fitted in the same manner as fitting a new spring Sent from my iPhone using Tapatalk

Hi all, thanks for useful advice, worked fine, my zodiac runs beauifully now. Nail clipper added tomy tools.

Sorry for the Haha . But the writing on the dial was so funny . Self wimding incabloc. Shouldn't it be self winding?

I've tried loads and loads of fluids all the jewelery ones the ones that come with the cleaners and many home made concoctions, but at the end of the day I use L&R cleaning fluid with amonia for cleaning, I use it in a small glass jar sat in water in my cleaner (small amount doesn't smell at all) the cleaner is fantastic, cleans great all and shines plates and wheels niceley, I won't use anything else now. As for rinsing I use alcohol, ie isopropyl, I use two jars for this, one for rinse one and one for rinse two, same method as when cleaning. For drying I borrowed my daughters hello kitty hairdryer, such a low speed and warm it's perfect for drying parts. The cleaning fluid I get from cousins, its about £30 for 3 litres but add on postage and it's nearer £50, but that 3 ltrs has lasted me nearly a year. And to be really stingy I filter it through coffee filters and use that stuff for case and strap cleaning applications.

Great stuff. Iv'e got a Longines one that isn't working either. Thought it might of been an easy fix until I removed the black plastic cover and saw this...