I would talk this over with my wife, but I am guessing you know where that will get me :)
I own these 4 watches which all have similarities.
I have been toying with the idea of this Steinhart (44mm on brown strap) for almost 2 years and I think I am ready to pull the trigger.
I can't keep them all...although I would love to. I don't think the PRS18Q is going anywhere as it is my do anything and everything with it watch. I just recently got the Kemmner and I am not thinking that is going anywhere as it is next to impossible to pick up and I love it (although is it too close to the Nav B Chrono II?). That leaves the PRS14 and the OVM. I am torn. The PRS14 is difficult to come by on the used market now, which makes me want to keep that one (although its size and shape are fairly close to the PRS18Q). The OVM has the very nice steel bracelet that goes so well with it yet still NATOs up rather well. It is however an easy piece to pick up on the used market.
For the last few months I have been wearing the Kemmner more than 50% of the time and I am struggling to get my other watches back into the rotation. BTW, it is built like a TANK. Just looking for some outside opinions... makes it easier than internalizing.