Let me ask: Why do you think you need a screw down crown? You know that the waterproofness is not increased or guaranteed by such a screw down crown?
Regardless, I would look at the Sinn 556 I RS and the Sinn 556 I B, the Guinand Klassik 37, the Guinand Serie 21, the Guinand Serie 155 and the Guinand Pilot Officer – the last three are chronographs though.
At Longines, you could also take a look at the Conquest series and if the bracelet is not mandatory, then also take a look at the Vulcain Skindiver Nautique.
PS: I would also think about the option of a second-hand purchase, then there would also be opportunities with more luxurious brands.
PPS: Also, I would recommend you to make a pre-selection yourself and not let the members here do your homework. A pretty decent source for research would be e.g. chrono24.com.