"New" 16750 bracelet - is it 904 or 316 steel

[propofolboy]

I was hoping to get a replacement bracelet for my 16750 from Rolex during servicing.

Will the replace bracelet be made of 904 or 316?

I understand 'steelinox' means 316, and oystersteel means 904.. but it appears that the service bracelets I have seen all say 'steelinox' but are sometimes described as 904. Does anyone know for sure ?

I ask this because I have a contact allergy to the 904 but not the 316 steel...