Not an awkward question at all. In fact, it's often a question that brings new watch collectors to forums such as this. And once here, it's a question of how far one wants to dive further into this world : )
When I first started getting into watches ~mid 2000's, it was the norm to get 30 - 40% off Omega's in the US. Even popular Seamaster and Speedmaster models. My 2254 and 2220 were both purchased at 33 - 37% off from an AD in San Diego, that is no longer an Omega AD. Around the early 2010's, Omega began tightening its distribution network and reducing the # of authorized dealers, together with opening dedicated brand boutiques.
Discounts since then have diminished, but models like the Aqua Terra, Globemaster, De Ville, can still found with 30+ % discounts in channels across the world. It's not uncommon to see the occasional Planet Ocean come up for around 30% discount, although it's more rare now than even just 2 years ago since the global stainless steel Rolex mania has driven more customers to Omega's professional models.
Have you looked through the Sales section of this forum? There are some Europe-based sellers who can track down the specific Aqua Terra configuration you're looking for, brand new in box with stamped warranty, for discounts greater than 20%. As recently as Jan 2019, I was able to get 25 - 30% at an AD in Eastern Europe, and that was even pre-VAT refund! While that additional VAT refund won't apply to you in the Netherlands, I would encourage you to keep looking if % discount is a major factor in weighing a purchase.
Keep in mind that an incremental 5% discount may not be worth the benefits that come with purchasing from your local authorized dealer, if they're a nice bunch. Assuming they'll throw in a lifetime of bracelet adjustments, spring bar replacements, or more significant freebies like a strap + buckle as part of your purchase. The latter can be a major financial incentive, if you ever plan to switch back & forth between bracelet and strap options.