I bought the 2018 blue Omega Seamster 300M in December of 2019 through seller Interwatches on Chrono24. I absolutely loved everything about the watch, the blue, lasered dial, the bright ceramic bezel, the versatile rubber strap. To me it was like the original 300M Bond with better coloring and materials.
But I had an issue with the rubber strap. The second keeper broke within the first week of wear. I contacted Chrono24 and the person I spoke with told me I should be complaining to Omega directly, not him. I pointed out that Chrono24 sold me the watch, not Omega, and that he was the person I would be dealing with. Eventually I went to my local Omega store in Chicago and purchased a replaced rubber strap, I do not recall the price but I think it was around $250 USD, and Chrono24 covered half the cost of replacement.
I was truly disgusted with the gentleman I spoke with at Chrono24, he was rude and obnoxious and denied that the seller and Chrono24 had any obligation to me, despite their claim of buyer protection.
If ever there is an argument for going to an authorized dealer, that was it. That being said, I only paid $3,825 USD without tax, which was considerably less than what I would have paid through Omega directly. If I could do it again, I would have bought through Jomashop, their prices are competitive and they seem to have a reputation for quality service.
Since that time the 2018 Seamaster 300M has found itself sitting in the closet, and the original (or second generation Bond 2531.80) has found itself firmly planted on my wrist again! I still have the broken rubber strap and I might just cut the keeper open for comparison.
So long story short, beware of the non authorized dealers, and that rubber strap is marvelous, but not unbreakable.,