Hola Gabriel.. Welcome to RWG!
My VC and AP knowledge is pretty much nonexistent but I'm sure there are plenty of experts ready to chime in if the search function doesn't give you answers to your questions..
Good to have you here - enjoy!
From what I have read the two register chronos (7031/32) were factory delivered with 380's - but many has retrofitted 589's that came with the later 3 register chronos (starting with the 9420) since they offer a better fit for the beloved homeplate.
+1
Phong's case back engravings (which is the only real weak spot on DW's IMO) also look better/ deeper.. Question is if that really justifies the price difference..?
Thanks B!
I'll take some additional pics of the strap during daylight tomorrow (it's a very dark afternoon here now) and start a separate thread about it as soon as I'm done!