The Pro clasp appears to the similar as the one used on the BB58 bronze (both feature Tudor's version of glidelock), but is the now the correct color/material for use with the BB58 bracelet. Who's going to be the first retrofit guinea pig?
In the BB Pro description on the Tudor site:
"A new bracelet clasp, with a TUDOR "T-fit" rapid size-adjustment system, completes the list of new innovations included in this model. Easy to use, requiring no tools and offering five positions, the "T-fit" system allows the wearer to carry out a fine, instant adjustment of up to 8mm on the clasp."
BB58 bronze
BB Pro
BB58
In the BB Pro description on the Tudor site:
"A new bracelet clasp, with a TUDOR "T-fit" rapid size-adjustment system, completes the list of new innovations included in this model. Easy to use, requiring no tools and offering five positions, the "T-fit" system allows the wearer to carry out a fine, instant adjustment of up to 8mm on the clasp."
BB58 bronze
BB Pro
BB58