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Is the PO 2500 Omega’s 5-digit Sub ?

w@tcher
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T tjs1295
I never used calipers to measure my 42 mm 2500. But for me, it wore much bigger than my six digit Submariner date.

I disagree.

The 42mm PO wears much smaller than the 6digit sub on my wrist.

My wrist is 16,5cm and the PO is the most suitable diver that fits perfectly, it even fits better that the previous 41mm Seamaster Professional.
 
T
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Once again it’s proof that everyone needs to try these things on. I thought the previous SMPC in 41 mm fit better than any watch I’ve owned.
 
Nobel Prize
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Yeah, it’s strange. I’ve had a 2500 PO, a LMLE and an 8500 and the all felt and looked bigger than my 40 mm subs (16610 & 14060m) They also did feel bigger than my smpc,

but I respect others feel different about it.
Edited:
 
gnuyork
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Could be the dial size, which can play tricks...
 
Foo2rama
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Look I love the 2500... but saying it wears smaller then a 5 digit sub....

Are you sure you had a real 5 digit sub, those are fairly small watches by current standards.
 
vitriol
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Lol @Foo2rama no more beers for you today sir.😁
One guy said 2500 is bigger than 5 digit sub... and another guy said it is smaller than 6 digit sub😉 Which I agree btw.
 
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vitriol vitriol
Lol @Foo2rama no more beers for you today sir.😁
One guy said 2500 is bigger than 5 digit sub... and another guy said it is smaller than 6 digit sub😉 Which I agree btw.
But the maxi dials on the 6 digit subs only have the broader lug shoulders really. I have a hulk and it is not that much larger than the 5 digit. On proportions though yes, but not on size.
 
gnuyork
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Foo2rama Foo2rama
Look I love the 2500... but saying it wears smaller then a 5 digit sub....

Are you sure you had a real 5 digit sub, those are fairly small watches by current standards.


I didn't see where anybody said it wore smaller than a 5 digit sub. 6 digit yes, but I can't conform or deny since I have never compared the two, but it would make more sense I suppose. I do think the PO wears smaller than the 42mm size suggests, again likely due to the asymmetric case crown guards making the 42mm, when the bezel is approx 40mm (or just under).
 
Blackdog
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IMO it wears similar in size to my 5-digit SD, somewhat thicker than a Sub. But the dial is bigger and the bezel narrower, which can give the impression that it's bigger to some ppl. The bracelet of the PO is also thicker than the classic oyster, that also contributes to a more pronounced wrist presence.

I'll post some side by side pics tomorrow...
 
dsio
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The 2500D variant really was a nice piece, the earlier 2500s had some teething problems that caused people to be a little wary of them for a time but the D variant seemed solid from launch and was just a nice watch at a steal of a price especially used.
 
VickMacky
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dsio dsio
The 2500D variant really was a nice piece, the earlier 2500s had some teething problems that caused people to be a little wary of them for a time but the D variant seemed solid from launch and was just a nice watch at a steal of a price especially used.
Mine is a 2500C and runs like a top. It was serviced about a year ago by Omega and is consistently +2 a day.
 
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At this point all 2500 are running well.

people forget that the most valuable of 2500 series, the LMLE, is a 2500c
 
dsio
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At this point all 2500 are running well.

people forget that the most valuable of 2500 series, the LMLE, is a 2500c
Yea it was more in the early days prior to them getting a grasp on the situation, I know there have been upgrade kits for both 2500s and 3313s to resolve the issues but in the early days of this site we were in the midst of those issues and one stage there was a large gap between a 2500D PO and the earlier ones as a result
 
Archer
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dsio dsio
Yea it was more in the early days prior to them getting a grasp on the situation, I know there have been upgrade kits for both 2500s and 3313s to resolve the issues but in the early days of this site we were in the midst of those issues and one stage there was a large gap between a 2500D PO and the earlier ones as a result

No upgrade for the 2500’s, only the 3313...
 
dsio
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Archer Archer
No upgrade for the 2500’s, only the 3313...
Didn't they do something to address the issues on the 2500s or is it the lubrication instructions or something they changed? I thought it was something that was done to improve reliability and some of the earlier ones were straight replaced or something?
 
Blackdog
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A bunch of comparison pictures against the 5-digit SeaDweller. Objectively speaking, the PO is larger by a couple of mm. You can clearly see that the dial is significantly larger, which accentuates the perception of it being a bigger watch. But I'd say they wear rather similarly.
20210305_091658.jpg 20210305_091225.jpg 20210305_091319.jpg 20210305_091544.jpg


Now, in terms of comfort, in my book lighter is better:
20210305_092108.jpg 20210305_093748.jpg


(Hmmmm, now that I think of it. Maybe I need to take the PO to Omega to have the Helium recharged... I knew I shouldn't be messing around with the HEV.... 😉)
Edited:
 
G
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Blackdog Blackdog
A bunch of comparison pictures against the 5-digit SeaDweller. Objectively speaking, the PO is larger by a couple of mm. You can clearly see that the dial is significantly larger, which accentuates the perception of it being a bigger watch. But I'd say they wear rather similarly.
20210305_091658.jpg 20210305_091225.jpg 20210305_091319.jpg 20210305_091544.jpg


Now, in terms of comfort, in my book lighter is better:
20210305_092108.jpg 20210305_093748.jpg


(Hmmmm, now that I think of it. Maybe I need to take the PO to Omega to have the Helium recharged... I knew I shouldn't be messing around with the HEV.... 😉)

Those 5 digit Sea Dwellers, they are 40mm? The size and dimensions/thickness look very close to the 39.5mm 8800 Planet Ocean's.

It is funny going from the standard clasp at 177g to 187g with the adjustable clasp, I do not feel any difference in the weight when wearing it.
IMG_8374.jpeg IMG_8397.jpeg


However going to the 8900 at 204g which is adding another 15g+, the distribution/feel is quite different. Everything is bigger though from the thickness of the links on the bracelet to 2mm thicker watch.
IMG_8389.jpeg


I wonder what the 2500 PO weighs without the bracelet. The 8900 PO's off the bracelet are 117g if I recall. The Seamaster 300 Master Co-axial off the bracelet came in at 79g on my scale. If I had to guess, the 2500PO is probably only a few grams more than a 300 Master Co-Axial.
IMG_8398.jpg
 
Archer
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dsio dsio
Didn't they do something to address the issues on the 2500s or is it the lubrication instructions or something they changed? I thought it was something that was done to improve reliability and some of the earlier ones were straight replaced or something?

Your first post mentioned "upgrade kits" and the 3313 is the only one that has that. That is a kit designed to convert the original 2-level co-axial escapement to the 3-level design, which doesn't suffer from the "sticky residue" issue that the 2-level design does. Here is the kit:



It includes a new base plate with the upgraded caliber designation stamped under the balance, plus a new co-axial wheel, and a new intermediate wheel:



There is no kit like this for the 2500. There are 4 variations of the 2500, so the A, B, C, and D. A through C are the 2-level escapement design, and D is the 3-level. So the D doesn't need upgrading, and that leaves the other three.

When Omega was struggling to find a solution to this problem, they tried a number of different solutions to prevent or delay the sticky residue from stopping the watch. This is what that residue looks like:



Omega tried varying lubrication changes, and for one of the three 2-level variants, the C, they changed the coating that was on the intermediate escape wheel. But they didn't change it on the other 2, and that tells me that the coating wasn't really the solution or they would have made the same change on the A and B. There aren't many A's out there, but there are a ton of B's, mostly in Aqua Terra models.

In the end, the intermediate escape wheel is treated with epilame, and every single tooth on that wheel is oiled with an oil that I don't use for any other application. So the escapement that doesn't need oil, has a total of 20 teeth on the intermediate escape wheel that get oiled, plus 10 more on the co-axial wheel.

So did this "solve" the problem? IMO no it didn't, because even after this the wheels still have residue on them, and this is a problem of geometry. But it appears to have delayed this from causing an issue during a normal service interval, so practically you can say it does I guess. The 2-level was initially chosen because it takes up less space (height), but Omega has abandoned it completely.

Hope this helps clarify things.

Cheers, Al
 
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