rmiskie@majidjaxn I haven't tested the case with any of the steel bands, sorry. With regards to stock, Shapeways is an on-demand service that produces your case at the time of order. There will be a wait time before shipment as they need to print and cleanup the part. As for material composition, the base metal is a bronze infused stainless steel. I believe there shouldn't be any nickel so long as you don't select the nickel finish.
rmiskie@aklinc123 Thanks for the heads-up! I really like the leather strap, but it's good to know with a little modification the case will work with a metal band.