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2021 Speedmaster Chronoscope clasp compatibility with the 3861 Moonwatch bracelet?

59843 Views 240 Replies 66 Participants Last post by  tbensous
It’s 16 mm and adjustable. I like the fit of my 3861 Moonwatch bracelet, but wouldn’t mind having some on-the-fly adjustability. Has anyone looked into whether the chronoscope clasp will be available separately (I.e., without having to buy the entire bracelet)?
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I could have sworn I placed the original link down and reused it with the Chronoscope clasp but I must be mistake, best to delete my previous posts, sorry for any confusion. The friend I mentioned also decided to sell his Speedy and cancelled the clasp order.
Somebody posted that earlier, but the fit was not good. When the Chronoscope clasp is installed with the 3861 connecting link, the clasp cannot be fully closed. Why that person did not realize this immediately is unclear, possibly because the clasp was actually able to partially latch?
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Somebody posted that earlier, but the fit was not good. When the Chronoscope clasp is installed with the 3861 connecting link, the clasp cannot be fully closed. Why that person did not realize this immediately is unclear, possibly because the clasp was actually able to partially latch?
I was one of those people and it’s not just the Chronoscope clasp installed with the 3861 connecting link. You also have to swap the folding arm from the 3861 clasp. It’s very hard to tell that the clasp isn’t fully closed because it still snaps like it’s closing normally. I wore it for months without knowing before it was pointed out to me.


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Lets just hope Omega provides an updated clasp on the speedy soon, which they said they will do.
Hi - I am VERY interested in this issue. I own an 861 and was just starting to think that I might add another speedy to the collection for the current sapphire - erroneously assuming it had the same on-the-fly adjustment clasp as the chronoscope.

Has Omega, indeed, said they would update the clasp??? That changes my immediate plans - a lot.

Thanks!!
My uneducated guess is there will be a direct fit part forthcoming.
Do you have a price for the bracelet and the clasp? Are you sure the bracelet fits the speedy?

A good writeup by Fratello, but still no definitive timeline on when the clasp will arrive to the stainless steel Moonwatch.
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A good writeup by Fratello, but still no definitive timeline on when the clasp will arrive to the stainless steel Moonwatch.
So the writer at Fratello is walking around with this adjustable clasp from the Chronoscope, not actually understanding that the clasp doesn’t actually latch? I understand that it’s required to swap arms, which he did - and that’s why it doesn’t lay flat, but the writers doesn’t mention anything about the clasp not actually latching.

Why would they even publish that? If it doesn’t latch, regardless of how it lays on the wrist, it’s not an option and super high risk.
So the writer at Fratello is walking around with this adjustable clasp from the Chronoscope, not actually understanding that the clasp doesn’t actually latch? I understand that it’s required to swap arms, which he did - and that’s why it doesn’t lay flat, but the writers doesn’t mention anything about the clasp not actually latching.

Why would they even publish that? If it doesn’t latch, regardless of how it lays on the wrist, it’s not an option and super high risk.
I have this same configuration on my 1861 speedy right now - chronoscope clasp, original 3861 folding arm, original 3861 connecting links, 3861 bracelet. It DOES latch. Once the clasp is closed, you cannot open it without pressing the release buttons. It’s not going to pop open on it own, and
I am 100% sure of that.

That being said… I would jump on the connecting link in a heartbeat if I could find one of the damn things. The fact that the arms don’t sit flat inside the clasp just bothers me. It wears very comfortable as it is, and I can’t tell that anything is “wrong” when I’m wearing the watch, but my OCD just won’t let me forget.

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Wanted to add on to this. I ordered O11STZ013899 (clasp) and asked if they could order me O118STZ013110 (link) and the Omega Boutique said:

"It looks like that part is included with the clasp because they won't let me order it separately. We'll know for sure once it arrives."

So I'll keep you posted!
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I received an email from the Omega boutique. They responded:

"We received information from our watch technicians regarding the clasp and they are highly advising that we do not install that clasp to a timepiece that is not meant to have it because the fit is not a good fit and will very likely fail and we cannot warranty product.

There is another way to make it fit better but this requires a link which is not yet available, if and when this link does become available we will let you know so that we can better assist you with this adjustment."
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I received an email from the Omega boutique. They responded:

"We received information from our watch technicians regarding the clasp and they are highly advising that we do not install that clasp to a timepiece that is not meant to have it because the fit is not a good fit and will very likely fail and we cannot warranty product.

There is another way to make it fit better but this requires a link which is not yet available, if and when this link does become available we will let you know so that we can better assist you with this adjustment."
That’s slightly more promising than what I was expecting they’d say. Every rep I’ve spoken to says the link is discontinued, which is odd considering it’s still being sold on the Chronoscope bracelet. They’re probably just wanting everyone to buy the official Speedmaster adjustable clasp when they finally release one. If they release one…


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I've been exploring the possibility of a quick adjust clasp for my 3861 Speedy since the day I bought it, and I'm really getting tired now. It's been almost a year and a half since the new Moonwatch came out, what's taking Omega so long to release a clasp that was supposed to come with the watch in the first place?
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Bumping this thread. Come on Omega where’s that clasp?!
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Bumping this thread. Come on Omega where’s that clasp?!
I hope they really don't come up with the adjustable clasp/link. The speedy fits me well with no micro- adjustment, but if it comes out, I am capable of buying it.
Please Omega don't release the adjustable clasp for the speedy pro, it won't be good for my wallet, and I don't need it - Thank you :p
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I hope they really don't come up with the adjustable clasp/link. The speedy fits me well with no micro- adjustment, but if it comes out, I am capable of buying it.
Please Omega don't release the adjustable clasp for the speedy pro, it won't be good for my wallet, and I don't need it - Thank you :p
Nothing like a little reverse psychology to get Omega’s attention. Nice work!


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Has anyone who did the switch with the chronomaster clasp run into issues in the mid to long term? Beyond the slightly ill fitting underside? I’m becoming impatient as well.
Has anyone who did the switch with the chronomaster clasp run into issues in the mid to long term? Beyond the slightly ill fitting underside? I’m becoming impatient as well.
Going on 3 months with mine. Love it. No issues at all. I’d buy the connection link for the sake of completion if I could, but I don’t sweat it anymore. It wears great, and 99.9% of people wouldn’t even know something was “off” about it. Just my two cents.


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Sub! I just picked up another speedy in hopes of getting an adjustable clasp for it.
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Sub! I just picked up another speedy in hopes of getting an adjustable clasp for it.
The chronoscope clasp swap is a pretty solid option, not perfect, but definitely gets the job done.

Congrats on the Speedy! Never sell it!


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Just stopped at the OB to check if I could order the Chronoscope clasp with the required link.
The lady I talked to said the clasp could be ordered, but in the system the link appeared as discontinued (as others have said).
She said she would try to get in touch on Monday with Omega, to confirm if she could make an order for it.
I will let you know the outcome.
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