What a brilliant display! Your workmanship and knowledge are phenomenal. A long way to go before I can attempt to work on a watch like this. Thank you for the guidance.
I just acquired one of these an hour ago. Runs well but date and day setting seem a it wonky. I am a hobbyist watch repair geek and will be using this in the future to service my new vintage find. (surgery on my hand has me out of commission for a while...) I also have an Elnix and a Swissonic. Love these movements! Thanks.
Very cool video. Thank you for your work. Will be referring to this video if and when I ever get a citizen model like yours. So Far what i have is the one with the monocoque case with the push lever to reset the seconds hand.
Actually, not so good. The precision will be the same as other standard mechanical movements because the basic mechanism is the same. We can adjust the beat rate by tuning the regulator.
I have a similar watch 7803A and got my watchmaker to “service it” however it always loses time (usually a couple of minutes per day or even hours) which made the watch unwearable. I was wondering if you knew what would the problem be? I noticed that it does not gain or lose time when it is on a crown down position (my watchmaker cannot also infer what the problem is). Would appreciate any insight. Thanks and great video :>
I'm sorry for late reply. The balance assembly may have an issue. The balance wheel has a magnet so it might have metal dust. In that case, you may hear a scratching noise when you tilt the watch. It will be worth checking.
Hi, can you please write which battery did you use? I have the same watch but I have problem with finding battery. The problem is that the watch was running normaly but after I replace the battery it just stoped working after 6 days..do you think that wrong battery on this watch can ruin mechanisam or something? Thanks!
I used an SR44/313 battery. I don't think the movement is picky about the battery. Did you check the battery voltage after stopping? If there is still about 1.5V left in the battery, the battery is good. The movement may have a mechanical or electrical problem.
I mainly uses 1.2 mm and 1.0 mm. Sometimes I use 0.9 mm or 0.8 mm but it's rare. In my experience, the shape of the tip is more important than the width. I use a sharpening stone before using it. But I need more practice.
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What a brilliant display! Your workmanship and knowledge are phenomenal. A long way to go before I can attempt to work on a watch like this. Thank you for the guidance.
I just acquired one of these an hour ago. Runs well but date and day setting seem a it wonky. I am a hobbyist watch repair geek and will be using this in the future to service my new vintage find. (surgery on my hand has me out of commission for a while...) I also have an Elnix and a Swissonic. Love these movements! Thanks.
Such a fascinating movement . nice work as well .
I have blue bezel Cosmotron, beautiful watch!
Very interesting mechanism and maintenance 👍👍👍
Very cool video. Thank you for your work. Will be referring to this video if and when I ever get a citizen model like yours. So Far what i have is the one with the monocoque case with the push lever to reset the seconds hand.
Many thanks for sharing your knowledge and work. The footage is also of excellent quality. What can you say about the precision of these mechanisms?
Actually, not so good. The precision will be the same as other standard mechanical movements because the basic mechanism is the same. We can adjust the beat rate by tuning the regulator.
Great job on serving that watch. 2nd Cosmotron that I have seen.
I have a similar watch 7803A and got my watchmaker to “service it” however it always loses time (usually a couple of minutes per day or even hours) which made the watch unwearable.
I was wondering if you knew what would the problem be? I noticed that it does not gain or lose time when it is on a crown down position (my watchmaker cannot also infer what the problem is).
Would appreciate any insight. Thanks and great video :>
The watch runs at +/- 1 sec per day according to a timegrapher but still the problem persists
I'm sorry for late reply. The balance assembly may have an issue. The balance wheel has a magnet so it might have metal dust. In that case, you may hear a scratching noise when you tilt the watch. It will be worth checking.
Hi, can you please write which battery did you use? I have the same watch but I have problem with finding battery. The problem is that the watch was running normaly but after I replace the battery it just stoped working after 6 days..do you think that wrong battery on this watch can ruin mechanisam or something? Thanks!
I used an SR44/313 battery. I don't think the movement is picky about the battery. Did you check the battery voltage after stopping? If there is still about 1.5V left in the battery, the battery is good. The movement may have a mechanical or electrical problem.
What size screwdriver did you use?
I mainly uses 1.2 mm and 1.0 mm. Sometimes I use 0.9 mm or 0.8 mm but it's rare. In my experience, the shape of the tip is more important than the width. I use a sharpening stone before using it. But I need more practice.
@vintagewatchtinkerer Thank you very much. I appreciate the advice.
SEM LUVAS OXIDA A MÁQUINA DO RELÓGIO 🇧🇷
dream!
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