Omega Jumbo - recent acquisition

Hi all,

Just got this Omega ref 2861 with 37,5mm case (waiting for the delivery now). Pretty excited as I want to see how the jumbo size will look on the wrist.
In the listing it said that it was services 6 months ago, but I notice that there are some missing screws (the one at the edge of the movement) - I assume this is not big deal and can easily be sources. But rather was wondering if it is an indication that there was no real servicing 6 months ago (would the watchmaker usually fix such small things?).
Can that servicing statement really be trusted?

Also it said that the crown is original, but it looks a bit stuck-out and could not find good reference (or trustworthy source) to compare. Anyone has an idea if it is correct?

Many thanks!

Unless there is paperwork associated with the sale of the watch - itemized receipt of work that was done AND an associated warranty I just treat the watch as if it has not been serviced. I do not factor it in or add value to the watch without those things.

Thanks - that was also what I found, but wasn't sure which of the two is the correct one.

Same for me : I never trust somebody stating a watch has just been serviced ; "service" is a flexible term to say the least... it can include a complete overhaul, or merely a few oil drops : I recently acquired a "serviced" Pie Pan : got it fully serviced by my watchmaker : several parts were completely rusted...