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That's what I thought, but as I said, it makes sense. See if any of our pros will have something to add. -
By Neverenoughwatches · Posted
Kind of guessing here watchie with a bit of logic. -
By rossjackson01 · Posted
Canon with FE 4612a movement. Day and Date display Trying something new. Although is will take some time for me to start, I have a back injury that is very painful and so cannot concentrate. Set myself a target to begin mid May. Purchased a Canon wrist watch with FE 4612a movement. Advertised with Rotor missing. Arrived, took photographs. Strap broken, removed and place in bin. Back removed. No rotor. Wind is stiff. Can wind up. Everything moves ok. Oscillates for under a minute, then stops. No rotor but all wheels appear the be there. Have sent for a donor movement FE4612. No day wheel. I have taken basic photographs up to the point of service commencement. I will try a new format and use the record system on the microscope to show the full disassembly subsequent assembly. I will photograph the cleaning process. Whilst I have no intention beginning a YouTube channel, I would like to begin to make a better record of my work standard. Work to do. Make case to a better standard. Repair crystal. Replace strap. Only a thought. I will try to insert an English day wheel. Not sure if it can be done, but hey, what can I lose. Got to stop now, back so sore. -
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Any naphtha will leave an oily deposit - as it is a petroleum distillate. Light naphtha is fine for cleaning watch parts as long as you do a final rinse with isopropyl alcohol. Try the mirror test on a watch cleaning solution, like Elma WF Pro - it leaves a residue. Which is why you use a rinse, and then a final IPA rinse. This is what I sometimes use on very dirty parts - it is a light refined naphtha, and on the mirror test leaves a slight oily residue. The IPA, of course, doesn't leave a deposit.
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