https://www.omegawatches.com/watch-...master-chronometer-gmt-45-5-mm-21592462201001

Hi may I ask where I can find curved-end rubber or leather strap that fits this model "Deep Black, 45.5mm"? Thanks

 

Pure speculation on my part — confirm with an AD — but I imagine you're looking for straps from the 45.5mm 8500 generation Planet Ocean… or perhaps the 45.5mm chrono versions. I have to imagine they'd have made those all the same way to keep costs in line.