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The 26240ST is like the upgraded version of the royal oak chronos like the 26320ST. Similar to how the 15400 was replaced by the 15500/10 but in this case the number scheme decreased.
The old 41mm chrono models after comparing the new versions to them, have extremely clumped together chronograph subdials and the date is also jammed in there lol.
Here is a shot of the new 2023 model that is made from a gen dial and a gen movement. As you can see the newer models space out the subdials in a way that is pleasing to the eye and also get the date window out of the way. If anyone lucky enough to obtain this movement, along with a gen dial is in for a treat!
Yes I said that right, someone made a CNC case for the 26240ST and gen dials are rare but obtainable if you have the money and the resources. I’m sticking with 39mm or 44mm models myself personally.
The old 41mm chrono models after comparing the new versions to them, have extremely clumped together chronograph subdials and the date is also jammed in there lol.
Here is a shot of the new 2023 model that is made from a gen dial and a gen movement. As you can see the newer models space out the subdials in a way that is pleasing to the eye and also get the date window out of the way. If anyone lucky enough to obtain this movement, along with a gen dial is in for a treat!


Yes I said that right, someone made a CNC case for the 26240ST and gen dials are rare but obtainable if you have the money and the resources. I’m sticking with 39mm or 44mm models myself personally.