Yes they do, they tell a story of incredibly wasteful service center procedures, and the eventual death of watchmaking. Yes that sounds dramatic, but let me explain...
Here is your photo, modified slightly to allow better lighting and I've added labels to all the parts:
A - Intermediate escape wheel
B - Reversing wheel
C, D, and E - all parts of the HEV
F - Mainspring barrel complete
G - Two seals - green hard plastic one is from the crystal, and the other is the NBR case back seal
H - Click spring for bezel
I - Balance complete
So I take no issue with most of these parts being replaced, as they are often replaced in a full service. The two that I find wasteful are the barrel complete, and the balance complete.
For the mainspring barrel complete, it is an assembly of 4 parts:
Mainspring
Barrel drum
Barrel cover
Barrel arbor
For the most part, the only part that really needs replacing of those 4 is the mainspring. Yes there are times when the barrel drum or barrel arbor could be worn and need replacing, but it's not terribly common in my experience, and in this case they didn't even check - to do so would require disassembling the barrel, cleaning the parts, and inspecting them for wear. But instead of doing any of this, Omega replaced the entire barrel assembly with a new one - this saves the watchmaker a couple of minutes, but ends up throwing away perfectly good parts.
For the balance complete that one is a bit more of a mystery. It could need work for a few reasons:
Balance staff broken
Balance staff worn
Damage to roller table or balance spring
Since this watch has shock protection, the most likely scenario (other than the watchmaker having an accident with the balance) is that the balance staff is worn. Unfortunately Omega continues the dumbing down of watchmaking by not making balance staffs available as a new part, so a simple worn staff (a part that would cost maybe $10) now requires the entire balance to be replaced. The same goes for any individual part of that balance - none of the parts are available as individual parts like they used to be, so replacing the entire assembly is the only option.
Watchmakers are becoming parts replacers, and this is a deliberate strategy. A lot of the work done to your watch wasn't done by a watchmaker, but by people who were hired off the street and trained to do specific jobs (technicians). So the watch was initially disassembled by one of these "technicians", so the movement was removed from the case, the hands and dial removed, and the movement was sent to be worked on by a trained watchmaker. The case was refinished and reassembled by technicians, and then it met back up with the movement after it was serviced, and then technicians installed the dial, the hands, and did the final casing of the movement, mounted the bracelet, and did the final quality checks.
It's been this way for some time, but now some companies are going further and are training people to work on movements in an assembly line fashion. Only the final oiling and adjustments will end up being done by a watchmaker in the end I suspect, so they will only very briefly touch your watch when it goes in for service if things keep going the way they are now.
Sorry this is probably not exactly what you were asking for...but to me that is the story that is told by your parts.
Cheers, Al
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