There are three iPhones with the designation "SE"; the original, the 2020 model and the 2022 model. The "Axxxx" model information will tell you which one you have. Here's how to find the number you want.
[quote|format=featured]You can identify the second generation of the iPhone SE (2020) by finding one of the model numbers either on the inner edge of the SIM card tray or within the phone's Settings app.
You can find the model number through the phone's UI by going to the ***Settings*** app and navigating to ***General*** > ***About***. Tap on the number listed in the ***Model Number*** section and it should change to a format that looks like the numbers above.[/quote]
The SE 1st generation is based on the 5S chassis and the model number will be one of: A1662, A1723, A1724.
The SE 2020 is based on the iPhone 8 chassis and will be one of: A2275, A2296, A2298.
The SE 2022 is also based on the iPhone 8 and has model numbers: A2595, A2782, A2784, A2785, A2783.