I totally agree with what you said about the 232... It's such an amazing piece... Understated but amazing
Interestingly, we see that 232's lume shine the brightest... 
As for the strap...
For 127, I would recommend OEM Cashmere / OEM JV or even try the OEM burgundy strap that comes with it...
For 232, I recommend the Asolutamente (339 strap) and OEM Dark brown gator, which works great for me..
For 249, Try OEM Dark blue gator or the original Tan strap, but you can go really dressy with a black gator with ecru stitch
And as for 339, just use the strap that comes with it.. I think it looks just amazing with the 339.
Thanks for sharing such an amazing collection
Best,
Sam