Odd sound?

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Hi, i just got this watch shipped in from Japan on chrono24 and its got a weird sound to it... you can hear the regular ticking but also a separate almost clanking sound? Is this normal it appears to all be in working order although i haven't been around it long enough to see but the chronograph works and the dates are changing and everything...i uploaded a video on YouTube where i put my phone up to the back of the watch so you can hear the sound im talking about, (may need to crank up the sound but you can hear it) https://youtube.com/shorts/xx4RW9xDoOg?si=xkbQvIsgoWoSFTuy
Its a speedmaster auto reference number 3520.53
Update: was serviced late 2022 in Japan, and seems to be very very fast 5+ minutes an hr fast...
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Ps... actually now checking again the watch may be running a bit fast...scratch that its running super fast... like 15min after about 3 or 4 hours
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Time for a service, or a return if C24 didn't disclose the condition
 
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Time for a service, or a return if C24 didn't disclose the condition

This would be a sad outcome either way since i would just lose all the customs fees and shipping i just paid... also i really wanted this watch 🙁 they stated it runs good

I popped off the back just to have a look (i know i know) i couldn't see anything out of the ordinary, the sound is deep inside the movement. But according to the back markings it had a complete service in 10-09-2022... and looks new inside so i believe it... could it have just been knocked around enough during shipping to pop something off?

Could it have become magnetized??? Could the spring getting magnetized it make it that off? Like 5 min fast an hr? I was thinking about getting a de magnetizer...
 
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Your link doesn't seem to work...
A magnetized watch will run fast, fairly simple to de-magnetize and they are not expensive tools to buy...
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Could be rebanking. Your rate estimate suggests it needs to be serviced, which isn’t surprising for a 20 year old watch that had probably never been serviced.

if you want the watch, get it serviced. If you want a cheap Omega, just buy a new Tissot or Seiko and be happy.
 
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Could be rebanking. Your rate estimate suggests it needs to be serviced, which isn’t surprising for a 20 year old watch that had probably never been serviced.

if you want the watch, get it serviced. If you want a cheap Omega, just buy a new Tissot or Seiko and be happy.

It was serviced at the end of 2022 in Japan, which is what makes it even more odd.. maybe he didn't set something correctly. Im gonna try the de magnetized tool first and see. Then i guess take it to a watch maker for ANOTHER 🙁 service if that doesn't work
 
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I listened to your video. I think it’s a simple case of the watch being haunted.

If the demagnetizer doesn't work try one of these:

 
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Lol if only... id be burning sage all over this thing 😁... its kinda hard to believe it can be 5 MINUTES fast an HR just from being magnetized but im gonna cross my fingers...
 
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Lol if only... id be burning sage all over this thing 😁... its kinda hard to believe it can be 5 MINUTES fast an HR just from being magnetized but im gonna cross my fingers...
If strongly magnetised, the delicate coils of the hairspring can stick together, especially if there is oil residue on the hairspring.
This will shorten the effective length of the hairspring coil which results in a higher beat rate and possibly over banking.
If a standard demagnetiser doesn't solve the problem the movement will need to be serviced.
I would not keep the watch running until the issue has been resolved.
 
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It was serviced at the end of 2022 in Japan, which is what makes it even more odd.. maybe he didn't set something correctly. Im gonna try the de magnetized tool first and see. Then i guess take it to a watch maker for ANOTHER 🙁 service if that doesn't work

I always take sellers claim of “servicing” as a lie unless I see an actual receipt from a legitimate watchmaker. Many “service” the watch by merely adjusting the timing so it appears to be running well when you first get it. They rarely disassemble the movement and replace worn parts - there’s no profit in it for them.
 
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Welcome to the world of viintage watches. When I purchase a vintage piece, I assume that it's going to need a full service no matter what the seller represents unless I see dated paperwork and an itemized receipt from a reputable watchmaker. The only exception is if I know the seller personally and trust what he/she tells me.
 
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Is the seller a private seller or a professional? Do you have a watchmaker who could carry out an inspection and issue a formal diagnosis?
If you start fiddling with it before you show it to a watchmaker, you can’t file a claim of any sort.
Maybe you can obtain a partial refund from a professional seller if the watch has been misrepresented.